Home / 87,725.89-121,062.70-47,440.43

Finding the Fourth Proportional to 87,725.89, 121,062.70 and 47,440.43

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Solution

The fourth proportional to 87,725.89, 121,062.70 and 47,440.43 is: 65,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,725.89 : 121,062.70 = 47,440.43 : x
  2. Step 2: Convert to fraction form
    87,725.89/121,062.70 = 47,440.43/x
  3. Step 3: Cross multiply
    87,725.89x = 121,062.70 × 47,440.43
  4. Step 4: Simplify right side
    87,725.89x = 5,743,267,133.91
  5. Step 5: Solve for x
    x = 5,743,267,133.91/87,725.89
  6. Step 6: Final answer
    x = 65,468.33

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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.