Home / 87,816.92-121,187.67-47,531.21

Finding the Fourth Proportional to 87,816.92, 121,187.67 and 47,531.21

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Solution

The fourth proportional to 87,816.92, 121,187.67 and 47,531.21 is: 65,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.92 : 121,187.67 = 47,531.21 : x
  2. Step 2: Convert to fraction form
    87,816.92/121,187.67 = 47,531.21/x
  3. Step 3: Cross multiply
    87,816.92x = 121,187.67 × 47,531.21
  4. Step 4: Simplify right side
    87,816.92x = 5,760,196,592.18
  5. Step 5: Solve for x
    x = 5,760,196,592.18/87,816.92
  6. Step 6: Final answer
    x = 65,593.24

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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.