Home / 87,863.29-121,250.79-47,576.20

Finding the Fourth Proportional to 87,863.29, 121,250.79 and 47,576.20

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Solution

The fourth proportional to 87,863.29, 121,250.79 and 47,576.20 is: 65,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.29 : 121,250.79 = 47,576.20 : x
  2. Step 2: Convert to fraction form
    87,863.29/121,250.79 = 47,576.20/x
  3. Step 3: Cross multiply
    87,863.29x = 121,250.79 × 47,576.20
  4. Step 4: Simplify right side
    87,863.29x = 5,768,651,835.20
  5. Step 5: Solve for x
    x = 5,768,651,835.20/87,863.29
  6. Step 6: Final answer
    x = 65,654.86

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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.