Home / 87,684.89-121,017-49,452.29

Finding the Fourth Proportional to 87,684.89, 121,017 and 49,452.29

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Solution

The fourth proportional to 87,684.89, 121,017 and 49,452.29 is: 68,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.89 : 121,017 = 49,452.29 : x
  2. Step 2: Convert to fraction form
    87,684.89/121,017 = 49,452.29/x
  3. Step 3: Cross multiply
    87,684.89x = 121,017 × 49,452.29
  4. Step 4: Simplify right side
    87,684.89x = 5,984,567,778.93
  5. Step 5: Solve for x
    x = 5,984,567,778.93/87,684.89
  6. Step 6: Final answer
    x = 68,250.84

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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.