Home / 87,784.45-121,141.68-47,497.33

Finding the Fourth Proportional to 87,784.45, 121,141.68 and 47,497.33

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Solution

The fourth proportional to 87,784.45, 121,141.68 and 47,497.33 is: 65,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,784.45 : 121,141.68 = 47,497.33 : x
  2. Step 2: Convert to fraction form
    87,784.45/121,141.68 = 47,497.33/x
  3. Step 3: Cross multiply
    87,784.45x = 121,141.68 × 47,497.33
  4. Step 4: Simplify right side
    87,784.45x = 5,753,906,351.71
  5. Step 5: Solve for x
    x = 5,753,906,351.71/87,784.45
  6. Step 6: Final answer
    x = 65,545.85

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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.