Home / 87,761.05-131,655.23-28,582.95

Finding the Fourth Proportional to 87,761.05, 131,655.23 and 28,582.95

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Solution

The fourth proportional to 87,761.05, 131,655.23 and 28,582.95 is: 42,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,761.05 : 131,655.23 = 28,582.95 : x
  2. Step 2: Convert to fraction form
    87,761.05/131,655.23 = 28,582.95/x
  3. Step 3: Cross multiply
    87,761.05x = 131,655.23 × 28,582.95
  4. Step 4: Simplify right side
    87,761.05x = 3,763,094,269.51
  5. Step 5: Solve for x
    x = 3,763,094,269.51/87,761.05
  6. Step 6: Final answer
    x = 42,878.87

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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.