Home / 87,875.19-131,785.55-31,708.02

Finding the Fourth Proportional to 87,875.19, 131,785.55 and 31,708.02

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Solution

The fourth proportional to 87,875.19, 131,785.55 and 31,708.02 is: 47,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.19 : 131,785.55 = 31,708.02 : x
  2. Step 2: Convert to fraction form
    87,875.19/131,785.55 = 31,708.02/x
  3. Step 3: Cross multiply
    87,875.19x = 131,785.55 × 31,708.02
  4. Step 4: Simplify right side
    87,875.19x = 4,178,658,696.57
  5. Step 5: Solve for x
    x = 4,178,658,696.57/87,875.19
  6. Step 6: Final answer
    x = 47,552.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.