Home / 87,627.10-131,440.65-54,384.70

Finding the Fourth Proportional to 87,627.10, 131,440.65 and 54,384.70

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Solution

The fourth proportional to 87,627.10, 131,440.65 and 54,384.70 is: 81,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,627.10 : 131,440.65 = 54,384.70 : x
  2. Step 2: Convert to fraction form
    87,627.10/131,440.65 = 54,384.70/x
  3. Step 3: Cross multiply
    87,627.10x = 131,440.65 × 54,384.70
  4. Step 4: Simplify right side
    87,627.10x = 7,148,360,318.06
  5. Step 5: Solve for x
    x = 7,148,360,318.06/87,627.10
  6. Step 6: Final answer
    x = 81,577.05

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1.5x scale

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.