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Finding the Fourth Proportional to 72,041.85, 108,062.66 and 40,041.27

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Solution

The fourth proportional to 72,041.85, 108,062.66 and 40,041.27 is: 60,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.85 : 108,062.66 = 40,041.27 : x
  2. Step 2: Convert to fraction form
    72,041.85/108,062.66 = 40,041.27/x
  3. Step 3: Cross multiply
    72,041.85x = 108,062.66 × 40,041.27
  4. Step 4: Simplify right side
    72,041.85x = 4,326,965,405.46
  5. Step 5: Solve for x
    x = 4,326,965,405.46/72,041.85
  6. Step 6: Final answer
    x = 60,061.83

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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.