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Finding the Fourth Proportional to 72,049.47, 108,074.07 and 40,048.89

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Solution

The fourth proportional to 72,049.47, 108,074.07 and 40,048.89 is: 60,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,049.47 : 108,074.07 = 40,048.89 : x
  2. Step 2: Convert to fraction form
    72,049.47/108,074.07 = 40,048.89/x
  3. Step 3: Cross multiply
    72,049.47x = 108,074.07 × 40,048.89
  4. Step 4: Simplify right side
    72,049.47x = 4,328,246,541.28
  5. Step 5: Solve for x
    x = 4,328,246,541.28/72,049.47
  6. Step 6: Final answer
    x = 60,073.26

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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.