Home / 87,476.74-131,187.43-28,298.56

Finding the Fourth Proportional to 87,476.74, 131,187.43 and 28,298.56

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Solution

The fourth proportional to 87,476.74, 131,187.43 and 28,298.56 is: 42,438.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.74 : 131,187.43 = 28,298.56 : x
  2. Step 2: Convert to fraction form
    87,476.74/131,187.43 = 28,298.56/x
  3. Step 3: Cross multiply
    87,476.74x = 131,187.43 × 28,298.56
  4. Step 4: Simplify right side
    87,476.74x = 3,712,415,359.10
  5. Step 5: Solve for x
    x = 3,712,415,359.10/87,476.74
  6. Step 6: Final answer
    x = 42,438.89

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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.