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Finding the Fourth Proportional to 87,122.54, 130,700.82 and 27,953.66

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Solution

The fourth proportional to 87,122.54, 130,700.82 and 27,953.66 is: 41,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.54 : 130,700.82 = 27,953.66 : x
  2. Step 2: Convert to fraction form
    87,122.54/130,700.82 = 27,953.66/x
  3. Step 3: Cross multiply
    87,122.54x = 130,700.82 × 27,953.66
  4. Step 4: Simplify right side
    87,122.54x = 3,653,565,630.50
  5. Step 5: Solve for x
    x = 3,653,565,630.50/87,122.54
  6. Step 6: Final answer
    x = 41,935.94

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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.