Home / 87,508.08-131,304.96-54,219.28

Finding the Fourth Proportional to 87,508.08, 131,304.96 and 54,219.28

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Solution

The fourth proportional to 87,508.08, 131,304.96 and 54,219.28 is: 81,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,508.08 : 131,304.96 = 54,219.28 : x
  2. Step 2: Convert to fraction form
    87,508.08/131,304.96 = 54,219.28/x
  3. Step 3: Cross multiply
    87,508.08x = 131,304.96 × 54,219.28
  4. Step 4: Simplify right side
    87,508.08x = 7,119,260,391.63
  5. Step 5: Solve for x
    x = 7,119,260,391.63/87,508.08
  6. Step 6: Final answer
    x = 81,355.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.