Home / 87,863.20-121,243.50-52,047.16

Finding the Fourth Proportional to 87,863.20, 121,243.50 and 52,047.16

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Solution

The fourth proportional to 87,863.20, 121,243.50 and 52,047.16 is: 71,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.20 : 121,243.50 = 52,047.16 : x
  2. Step 2: Convert to fraction form
    87,863.20/121,243.50 = 52,047.16/x
  3. Step 3: Cross multiply
    87,863.20x = 121,243.50 × 52,047.16
  4. Step 4: Simplify right side
    87,863.20x = 6,310,379,843.46
  5. Step 5: Solve for x
    x = 6,310,379,843.46/87,863.20
  6. Step 6: Final answer
    x = 71,820.51

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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.