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Finding the Fourth Proportional to 87,159.76, 130,809.71 and 45,052.19

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Solution

The fourth proportional to 87,159.76, 130,809.71 and 45,052.19 is: 67,614.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.76 : 130,809.71 = 45,052.19 : x
  2. Step 2: Convert to fraction form
    87,159.76/130,809.71 = 45,052.19/x
  3. Step 3: Cross multiply
    87,159.76x = 130,809.71 × 45,052.19
  4. Step 4: Simplify right side
    87,159.76x = 5,893,264,179.47
  5. Step 5: Solve for x
    x = 5,893,264,179.47/87,159.76
  6. Step 6: Final answer
    x = 67,614.51

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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.