Home / 87,259.20-130,901.18-28,081.10

Finding the Fourth Proportional to 87,259.20, 130,901.18 and 28,081.10

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Solution

The fourth proportional to 87,259.20, 130,901.18 and 28,081.10 is: 42,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,259.20 : 130,901.18 = 28,081.10 : x
  2. Step 2: Convert to fraction form
    87,259.20/130,901.18 = 28,081.10/x
  3. Step 3: Cross multiply
    87,259.20x = 130,901.18 × 28,081.10
  4. Step 4: Simplify right side
    87,259.20x = 3,675,848,330.79
  5. Step 5: Solve for x
    x = 3,675,848,330.79/87,259.20
  6. Step 6: Final answer
    x = 42,125.62

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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.