Home / 40,776.78-61,162.20-18,294.42

Finding the Fourth Proportional to 40,776.78, 61,162.20 and 18,294.42

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Solution

The fourth proportional to 40,776.78, 61,162.20 and 18,294.42 is: 27,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,776.78 : 61,162.20 = 18,294.42 : x
  2. Step 2: Convert to fraction form
    40,776.78/61,162.20 = 18,294.42/x
  3. Step 3: Cross multiply
    40,776.78x = 61,162.20 × 18,294.42
  4. Step 4: Simplify right side
    40,776.78x = 1,118,926,974.92
  5. Step 5: Solve for x
    x = 1,118,926,974.92/40,776.78
  6. Step 6: Final answer
    x = 27,440.30

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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.