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Finding the Fourth Proportional to 71,473.92, 98,613.92 and 56,319.60

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Solution

The fourth proportional to 71,473.92, 98,613.92 and 56,319.60 is: 77,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473.92 : 98,613.92 = 56,319.60 : x
  2. Step 2: Convert to fraction form
    71,473.92/98,613.92 = 56,319.60/x
  3. Step 3: Cross multiply
    71,473.92x = 98,613.92 × 56,319.60
  4. Step 4: Simplify right side
    71,473.92x = 5,553,896,528.83
  5. Step 5: Solve for x
    x = 5,553,896,528.83/71,473.92
  6. Step 6: Final answer
    x = 77,705.22

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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.