Home / 87,191.16-130,671.54-31,733.88

Finding the Fourth Proportional to 87,191.16, 130,671.54 and 31,733.88

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Solution

The fourth proportional to 87,191.16, 130,671.54 and 31,733.88 is: 47,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.16 : 130,671.54 = 31,733.88 : x
  2. Step 2: Convert to fraction form
    87,191.16/130,671.54 = 31,733.88/x
  3. Step 3: Cross multiply
    87,191.16x = 130,671.54 × 31,733.88
  4. Step 4: Simplify right side
    87,191.16x = 4,146,714,969.78
  5. Step 5: Solve for x
    x = 4,146,714,969.78/87,191.16
  6. Step 6: Final answer
    x = 47,558.89

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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.