Home / 71,217.62-98,279.69-39,385.83

Finding the Fourth Proportional to 71,217.62, 98,279.69 and 39,385.83

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Solution

The fourth proportional to 71,217.62, 98,279.69 and 39,385.83 is: 54,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,217.62 : 98,279.69 = 39,385.83 : x
  2. Step 2: Convert to fraction form
    71,217.62/98,279.69 = 39,385.83/x
  3. Step 3: Cross multiply
    71,217.62x = 98,279.69 × 39,385.83
  4. Step 4: Simplify right side
    71,217.62x = 3,870,827,162.79
  5. Step 5: Solve for x
    x = 3,870,827,162.79/71,217.62
  6. Step 6: Final answer
    x = 54,352.10

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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.