Home / 87,344.52-120,554.84-55,507.20

Finding the Fourth Proportional to 87,344.52, 120,554.84 and 55,507.20

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Solution

The fourth proportional to 87,344.52, 120,554.84 and 55,507.20 is: 76,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,344.52 : 120,554.84 = 55,507.20 : x
  2. Step 2: Convert to fraction form
    87,344.52/120,554.84 = 55,507.20/x
  3. Step 3: Cross multiply
    87,344.52x = 120,554.84 × 55,507.20
  4. Step 4: Simplify right side
    87,344.52x = 6,691,661,614.85
  5. Step 5: Solve for x
    x = 6,691,661,614.85/87,344.52
  6. Step 6: Final answer
    x = 76,612.27

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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.