Home / 87,322.75-120,502.65-49,081.33

Finding the Fourth Proportional to 87,322.75, 120,502.65 and 49,081.33

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Solution

The fourth proportional to 87,322.75, 120,502.65 and 49,081.33 is: 67,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,322.75 : 120,502.65 = 49,081.33 : x
  2. Step 2: Convert to fraction form
    87,322.75/120,502.65 = 49,081.33/x
  3. Step 3: Cross multiply
    87,322.75x = 120,502.65 × 49,081.33
  4. Step 4: Simplify right side
    87,322.75x = 5,914,430,330.52
  5. Step 5: Solve for x
    x = 5,914,430,330.52/87,322.75
  6. Step 6: Final answer
    x = 67,730.69

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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.