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Finding the Fourth Proportional to 87,230.76, 130,763.03 and 28,024.88

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Solution

The fourth proportional to 87,230.76, 130,763.03 and 28,024.88 is: 42,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,230.76 : 130,763.03 = 28,024.88 : x
  2. Step 2: Convert to fraction form
    87,230.76/130,763.03 = 28,024.88/x
  3. Step 3: Cross multiply
    87,230.76x = 130,763.03 × 28,024.88
  4. Step 4: Simplify right side
    87,230.76x = 3,664,617,430.25
  5. Step 5: Solve for x
    x = 3,664,617,430.25/87,230.76
  6. Step 6: Final answer
    x = 42,010.61

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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.