Home / 49,208.40-67,888-30,312.72

Finding the Fourth Proportional to 49,208.40, 67,888 and 30,312.72

Calculator

Solution

The fourth proportional to 49,208.40, 67,888 and 30,312.72 is: 41,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,208.40 : 67,888 = 30,312.72 : x
  2. Step 2: Convert to fraction form
    49,208.40/67,888 = 30,312.72/x
  3. Step 3: Cross multiply
    49,208.40x = 67,888 × 30,312.72
  4. Step 4: Simplify right side
    49,208.40x = 2,057,869,935.36
  5. Step 5: Solve for x
    x = 2,057,869,935.36/49,208.40
  6. Step 6: Final answer
    x = 41,819.48

Related Problems

Find fourth proportional to 24,604.20, 33,944 and 15,156.36
Half scale
Find fourth proportional to 98,416.80, 135,776 and 60,625.44
Double scale
Find fourth proportional to 49,209.40, 67,889.38 and 30,313.72
Similar ratio
Find fourth proportional to 73,812.60, 101,832 and 45,469.08
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.