Home / 71,648.17-98,874.27-39,382.40

Finding the Fourth Proportional to 71,648.17, 98,874.27 and 39,382.40

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Solution

The fourth proportional to 71,648.17, 98,874.27 and 39,382.40 is: 54,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,648.17 : 98,874.27 = 39,382.40 : x
  2. Step 2: Convert to fraction form
    71,648.17/98,874.27 = 39,382.40/x
  3. Step 3: Cross multiply
    71,648.17x = 98,874.27 × 39,382.40
  4. Step 4: Simplify right side
    71,648.17x = 3,893,906,298.03
  5. Step 5: Solve for x
    x = 3,893,906,298.03/71,648.17
  6. Step 6: Final answer
    x = 54,347.60

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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.