Home / 71,335.10-107,079.45-40,231.10

Finding the Fourth Proportional to 71,335.10, 107,079.45 and 40,231.10

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Solution

The fourth proportional to 71,335.10, 107,079.45 and 40,231.10 is: 60,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,335.10 : 107,079.45 = 40,231.10 : x
  2. Step 2: Convert to fraction form
    71,335.10/107,079.45 = 40,231.10/x
  3. Step 3: Cross multiply
    71,335.10x = 107,079.45 × 40,231.10
  4. Step 4: Simplify right side
    71,335.10x = 4,307,924,060.90
  5. Step 5: Solve for x
    x = 4,307,924,060.90/71,335.10
  6. Step 6: Final answer
    x = 60,389.96

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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.