Home / 87,532.86-120,541.10-76,042.54

Finding the Fourth Proportional to 87,532.86, 120,541.10 and 76,042.54

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Solution

The fourth proportional to 87,532.86, 120,541.10 and 76,042.54 is: 104,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,532.86 : 120,541.10 = 76,042.54 : x
  2. Step 2: Convert to fraction form
    87,532.86/120,541.10 = 76,042.54/x
  3. Step 3: Cross multiply
    87,532.86x = 120,541.10 × 76,042.54
  4. Step 4: Simplify right side
    87,532.86x = 9,166,251,418.39
  5. Step 5: Solve for x
    x = 9,166,251,418.39/87,532.86
  6. Step 6: Final answer
    x = 104,717.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.