Home / 71,382.64-98,508.20-39,551.76

Finding the Fourth Proportional to 71,382.64, 98,508.20 and 39,551.76

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Solution

The fourth proportional to 71,382.64, 98,508.20 and 39,551.76 is: 54,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.64 : 98,508.20 = 39,551.76 : x
  2. Step 2: Convert to fraction form
    71,382.64/98,508.20 = 39,551.76/x
  3. Step 3: Cross multiply
    71,382.64x = 98,508.20 × 39,551.76
  4. Step 4: Simplify right side
    71,382.64x = 3,896,172,684.43
  5. Step 5: Solve for x
    x = 3,896,172,684.43/71,382.64
  6. Step 6: Final answer
    x = 54,581.52

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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.