Home / 87,491.79-131,258.61-28,327.50

Finding the Fourth Proportional to 87,491.79, 131,258.61 and 28,327.50

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Solution

The fourth proportional to 87,491.79, 131,258.61 and 28,327.50 is: 42,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,491.79 : 131,258.61 = 28,327.50 : x
  2. Step 2: Convert to fraction form
    87,491.79/131,258.61 = 28,327.50/x
  3. Step 3: Cross multiply
    87,491.79x = 131,258.61 × 28,327.50
  4. Step 4: Simplify right side
    87,491.79x = 3,718,228,274.78
  5. Step 5: Solve for x
    x = 3,718,228,274.78/87,491.79
  6. Step 6: Final answer
    x = 42,498.02

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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.