Home / 87,906.96-121,281.76-49,660.92

Finding the Fourth Proportional to 87,906.96, 121,281.76 and 49,660.92

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Solution

The fourth proportional to 87,906.96, 121,281.76 and 49,660.92 is: 68,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.96 : 121,281.76 = 49,660.92 : x
  2. Step 2: Convert to fraction form
    87,906.96/121,281.76 = 49,660.92/x
  3. Step 3: Cross multiply
    87,906.96x = 121,281.76 × 49,660.92
  4. Step 4: Simplify right side
    87,906.96x = 6,022,963,780.82
  5. Step 5: Solve for x
    x = 6,022,963,780.82/87,906.96
  6. Step 6: Final answer
    x = 68,515.21

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1.5x scale

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.