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Finding the Fourth Proportional to 87,002.88, 130,525.04 and 30,847.88

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Solution

The fourth proportional to 87,002.88, 130,525.04 and 30,847.88 is: 46,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,002.88 : 130,525.04 = 30,847.88 : x
  2. Step 2: Convert to fraction form
    87,002.88/130,525.04 = 30,847.88/x
  3. Step 3: Cross multiply
    87,002.88x = 130,525.04 × 30,847.88
  4. Step 4: Simplify right side
    87,002.88x = 4,026,420,770.92
  5. Step 5: Solve for x
    x = 4,026,420,770.92/87,002.88
  6. Step 6: Final answer
    x = 46,279.17

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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.