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Finding the Fourth Proportional to 87,111.86, 130,552.97 and 34,492.64

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Solution

The fourth proportional to 87,111.86, 130,552.97 and 34,492.64 is: 51,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111.86 : 130,552.97 = 34,492.64 : x
  2. Step 2: Convert to fraction form
    87,111.86/130,552.97 = 34,492.64/x
  3. Step 3: Cross multiply
    87,111.86x = 130,552.97 × 34,492.64
  4. Step 4: Simplify right side
    87,111.86x = 4,503,115,769.91
  5. Step 5: Solve for x
    x = 4,503,115,769.91/87,111.86
  6. Step 6: Final answer
    x = 51,693.49

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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.