Home / 87,987.20-132,045.60-35,434.40

Finding the Fourth Proportional to 87,987.20, 132,045.60 and 35,434.40

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Solution

The fourth proportional to 87,987.20, 132,045.60 and 35,434.40 is: 53,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,987.20 : 132,045.60 = 35,434.40 : x
  2. Step 2: Convert to fraction form
    87,987.20/132,045.60 = 35,434.40/x
  3. Step 3: Cross multiply
    87,987.20x = 132,045.60 × 35,434.40
  4. Step 4: Simplify right side
    87,987.20x = 4,678,956,608.64
  5. Step 5: Solve for x
    x = 4,678,956,608.64/87,987.20
  6. Step 6: Final answer
    x = 53,177.70

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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.