Home / 40,766.28-61,142.86-11,177.20

Finding the Fourth Proportional to 40,766.28, 61,142.86 and 11,177.20

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Solution

The fourth proportional to 40,766.28, 61,142.86 and 11,177.20 is: 16,764.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,766.28 : 61,142.86 = 11,177.20 : x
  2. Step 2: Convert to fraction form
    40,766.28/61,142.86 = 11,177.20/x
  3. Step 3: Cross multiply
    40,766.28x = 61,142.86 × 11,177.20
  4. Step 4: Simplify right side
    40,766.28x = 683,405,974.79
  5. Step 5: Solve for x
    x = 683,405,974.79/40,766.28
  6. Step 6: Final answer
    x = 16,764.00

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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.