Home / 87,999.20-132,063.60-35,446.40

Finding the Fourth Proportional to 87,999.20, 132,063.60 and 35,446.40

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Solution

The fourth proportional to 87,999.20, 132,063.60 and 35,446.40 is: 53,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.20 : 132,063.60 = 35,446.40 : x
  2. Step 2: Convert to fraction form
    87,999.20/132,063.60 = 35,446.40/x
  3. Step 3: Cross multiply
    87,999.20x = 132,063.60 × 35,446.40
  4. Step 4: Simplify right side
    87,999.20x = 4,681,179,191.04
  5. Step 5: Solve for x
    x = 4,681,179,191.04/87,999.20
  6. Step 6: Final answer
    x = 53,195.70

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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.