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Finding the Fourth Proportional to 40,079.74, 60,119.00 and 13,784.71

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Solution

The fourth proportional to 40,079.74, 60,119.00 and 13,784.71 is: 20,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,079.74 : 60,119.00 = 13,784.71 : x
  2. Step 2: Convert to fraction form
    40,079.74/60,119.00 = 13,784.71/x
  3. Step 3: Cross multiply
    40,079.74x = 60,119.00 × 13,784.71
  4. Step 4: Simplify right side
    40,079.74x = 828,722,610.97
  5. Step 5: Solve for x
    x = 828,722,610.97/40,079.74
  6. Step 6: Final answer
    x = 20,676.85

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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.