Home / 40,040.78-60,065.27-13,742.11

Finding the Fourth Proportional to 40,040.78, 60,065.27 and 13,742.11

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Solution

The fourth proportional to 40,040.78, 60,065.27 and 13,742.11 is: 20,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,040.78 : 60,065.27 = 13,742.11 : x
  2. Step 2: Convert to fraction form
    40,040.78/60,065.27 = 13,742.11/x
  3. Step 3: Cross multiply
    40,040.78x = 60,065.27 × 13,742.11
  4. Step 4: Simplify right side
    40,040.78x = 825,423,178.48
  5. Step 5: Solve for x
    x = 825,423,178.48/40,040.78
  6. Step 6: Final answer
    x = 20,614.56

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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.