Home / 87,125.58-130,732.20-64,983.42

Finding the Fourth Proportional to 87,125.58, 130,732.20 and 64,983.42

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Solution

The fourth proportional to 87,125.58, 130,732.20 and 64,983.42 is: 97,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125.58 : 130,732.20 = 64,983.42 : x
  2. Step 2: Convert to fraction form
    87,125.58/130,732.20 = 64,983.42/x
  3. Step 3: Cross multiply
    87,125.58x = 130,732.20 × 64,983.42
  4. Step 4: Simplify right side
    87,125.58x = 8,495,425,460.12
  5. Step 5: Solve for x
    x = 8,495,425,460.12/87,125.58
  6. Step 6: Final answer
    x = 97,507.82

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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.