Home / 87,760.80-131,654.85-28,582.70

Finding the Fourth Proportional to 87,760.80, 131,654.85 and 28,582.70

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Solution

The fourth proportional to 87,760.80, 131,654.85 and 28,582.70 is: 42,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760.80 : 131,654.85 = 28,582.70 : x
  2. Step 2: Convert to fraction form
    87,760.80/131,654.85 = 28,582.70/x
  3. Step 3: Cross multiply
    87,760.80x = 131,654.85 × 28,582.70
  4. Step 4: Simplify right side
    87,760.80x = 3,763,051,081.10
  5. Step 5: Solve for x
    x = 3,763,051,081.10/87,760.80
  6. Step 6: Final answer
    x = 42,878.50

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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.