Home / 87,463.56-120,707.10-71,503.32

Finding the Fourth Proportional to 87,463.56, 120,707.10 and 71,503.32

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Solution

The fourth proportional to 87,463.56, 120,707.10 and 71,503.32 is: 98,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,463.56 : 120,707.10 = 71,503.32 : x
  2. Step 2: Convert to fraction form
    87,463.56/120,707.10 = 71,503.32/x
  3. Step 3: Cross multiply
    87,463.56x = 120,707.10 × 71,503.32
  4. Step 4: Simplify right side
    87,463.56x = 8,630,958,397.57
  5. Step 5: Solve for x
    x = 8,630,958,397.57/87,463.56
  6. Step 6: Final answer
    x = 98,680.62

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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.