Home / 78,485.91-108,309.98-42,675.95

Finding the Fourth Proportional to 78,485.91, 108,309.98 and 42,675.95

Calculator

Solution

The fourth proportional to 78,485.91, 108,309.98 and 42,675.95 is: 58,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,485.91 : 108,309.98 = 42,675.95 : x
  2. Step 2: Convert to fraction form
    78,485.91/108,309.98 = 42,675.95/x
  3. Step 3: Cross multiply
    78,485.91x = 108,309.98 × 42,675.95
  4. Step 4: Simplify right side
    78,485.91x = 4,622,230,536.05
  5. Step 5: Solve for x
    x = 4,622,230,536.05/78,485.91
  6. Step 6: Final answer
    x = 58,892.49

Related Problems

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.