Home / 71,344.28-98,458.06-39,513.20

Finding the Fourth Proportional to 71,344.28, 98,458.06 and 39,513.20

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Solution

The fourth proportional to 71,344.28, 98,458.06 and 39,513.20 is: 54,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,344.28 : 98,458.06 = 39,513.20 : x
  2. Step 2: Convert to fraction form
    71,344.28/98,458.06 = 39,513.20/x
  3. Step 3: Cross multiply
    71,344.28x = 98,458.06 × 39,513.20
  4. Step 4: Simplify right side
    71,344.28x = 3,890,393,016.39
  5. Step 5: Solve for x
    x = 3,890,393,016.39/71,344.28
  6. Step 6: Final answer
    x = 54,529.85

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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.