Home / 87,345.47-120,524.60-49,099.61

Finding the Fourth Proportional to 87,345.47, 120,524.60 and 49,099.61

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Solution

The fourth proportional to 87,345.47, 120,524.60 and 49,099.61 is: 67,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.47 : 120,524.60 = 49,099.61 : x
  2. Step 2: Convert to fraction form
    87,345.47/120,524.60 = 49,099.61/x
  3. Step 3: Cross multiply
    87,345.47x = 120,524.60 × 49,099.61
  4. Step 4: Simplify right side
    87,345.47x = 5,917,710,609.91
  5. Step 5: Solve for x
    x = 5,917,710,609.91/87,345.47
  6. Step 6: Final answer
    x = 67,750.63

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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.