Home / 87,727.56-121,062.53-49,487.19

Finding the Fourth Proportional to 87,727.56, 121,062.53 and 49,487.19

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Solution

The fourth proportional to 87,727.56, 121,062.53 and 49,487.19 is: 68,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727.56 : 121,062.53 = 49,487.19 : x
  2. Step 2: Convert to fraction form
    87,727.56/121,062.53 = 49,487.19/x
  3. Step 3: Cross multiply
    87,727.56x = 121,062.53 × 49,487.19
  4. Step 4: Simplify right side
    87,727.56x = 5,991,044,176.55
  5. Step 5: Solve for x
    x = 5,991,044,176.55/87,727.56
  6. Step 6: Final answer
    x = 68,291.47

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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.