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Finding the Fourth Proportional to 87,052.64, 130,468.80 and 42,668.96

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Solution

The fourth proportional to 87,052.64, 130,468.80 and 42,668.96 is: 63,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,052.64 : 130,468.80 = 42,668.96 : x
  2. Step 2: Convert to fraction form
    87,052.64/130,468.80 = 42,668.96/x
  3. Step 3: Cross multiply
    87,052.64x = 130,468.80 × 42,668.96
  4. Step 4: Simplify right side
    87,052.64x = 5,566,968,008.45
  5. Step 5: Solve for x
    x = 5,566,968,008.45/87,052.64
  6. Step 6: Final answer
    x = 63,949.44

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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.