Home / 87,817.42-121,188.36-47,531.71

Finding the Fourth Proportional to 87,817.42, 121,188.36 and 47,531.71

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Solution

The fourth proportional to 87,817.42, 121,188.36 and 47,531.71 is: 65,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.42 : 121,188.36 = 47,531.71 : x
  2. Step 2: Convert to fraction form
    87,817.42/121,188.36 = 47,531.71/x
  3. Step 3: Cross multiply
    87,817.42x = 121,188.36 × 47,531.71
  4. Step 4: Simplify right side
    87,817.42x = 5,760,289,982.90
  5. Step 5: Solve for x
    x = 5,760,289,982.90/87,817.42
  6. Step 6: Final answer
    x = 65,593.93

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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.