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Finding the Fourth Proportional to 87,082.80, 130,634.28 and 34,496.88

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Solution

The fourth proportional to 87,082.80, 130,634.28 and 34,496.88 is: 51,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,082.80 : 130,634.28 = 34,496.88 : x
  2. Step 2: Convert to fraction form
    87,082.80/130,634.28 = 34,496.88/x
  3. Step 3: Cross multiply
    87,082.80x = 130,634.28 × 34,496.88
  4. Step 4: Simplify right side
    87,082.80x = 4,506,475,081.05
  5. Step 5: Solve for x
    x = 4,506,475,081.05/87,082.80
  6. Step 6: Final answer
    x = 51,749.31

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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.