Home / 87,555.42-131,319.31-28,377.27

Finding the Fourth Proportional to 87,555.42, 131,319.31 and 28,377.27

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Solution

The fourth proportional to 87,555.42, 131,319.31 and 28,377.27 is: 42,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,555.42 : 131,319.31 = 28,377.27 : x
  2. Step 2: Convert to fraction form
    87,555.42/131,319.31 = 28,377.27/x
  3. Step 3: Cross multiply
    87,555.42x = 131,319.31 × 28,377.27
  4. Step 4: Simplify right side
    87,555.42x = 3,726,483,516.08
  5. Step 5: Solve for x
    x = 3,726,483,516.08/87,555.42
  6. Step 6: Final answer
    x = 42,561.43

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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.