Home / 71,366.40-98,491.68-39,545.28

Finding the Fourth Proportional to 71,366.40, 98,491.68 and 39,545.28

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Solution

The fourth proportional to 71,366.40, 98,491.68 and 39,545.28 is: 54,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.40 : 98,491.68 = 39,545.28 : x
  2. Step 2: Convert to fraction form
    71,366.40/98,491.68 = 39,545.28/x
  3. Step 3: Cross multiply
    71,366.40x = 98,491.68 × 39,545.28
  4. Step 4: Simplify right side
    71,366.40x = 3,894,881,063.27
  5. Step 5: Solve for x
    x = 3,894,881,063.27/71,366.40
  6. Step 6: Final answer
    x = 54,575.84

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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.