Home / 71,922.35-107,808.66-40,286.02

Finding the Fourth Proportional to 71,922.35, 107,808.66 and 40,286.02

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Solution

The fourth proportional to 71,922.35, 107,808.66 and 40,286.02 is: 60,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,922.35 : 107,808.66 = 40,286.02 : x
  2. Step 2: Convert to fraction form
    71,922.35/107,808.66 = 40,286.02/x
  3. Step 3: Cross multiply
    71,922.35x = 107,808.66 × 40,286.02
  4. Step 4: Simplify right side
    71,922.35x = 4,343,181,832.93
  5. Step 5: Solve for x
    x = 4,343,181,832.93/71,922.35
  6. Step 6: Final answer
    x = 60,387.10

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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.