Home / 51,221.07-70,685.37-28,561.50

Finding the Fourth Proportional to 51,221.07, 70,685.37 and 28,561.50

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Solution

The fourth proportional to 51,221.07, 70,685.37 and 28,561.50 is: 39,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221.07 : 70,685.37 = 28,561.50 : x
  2. Step 2: Convert to fraction form
    51,221.07/70,685.37 = 28,561.50/x
  3. Step 3: Cross multiply
    51,221.07x = 70,685.37 × 28,561.50
  4. Step 4: Simplify right side
    51,221.07x = 2,018,880,195.26
  5. Step 5: Solve for x
    x = 2,018,880,195.26/51,221.07
  6. Step 6: Final answer
    x = 39,415.03

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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.