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Finding the Fourth Proportional to 72,040.65, 108,077.06 and 22,125.80

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Solution

The fourth proportional to 72,040.65, 108,077.06 and 22,125.80 is: 33,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,040.65 : 108,077.06 = 22,125.80 : x
  2. Step 2: Convert to fraction form
    72,040.65/108,077.06 = 22,125.80/x
  3. Step 3: Cross multiply
    72,040.65x = 108,077.06 × 22,125.80
  4. Step 4: Simplify right side
    72,040.65x = 2,391,290,763.13
  5. Step 5: Solve for x
    x = 2,391,290,763.13/72,040.65
  6. Step 6: Final answer
    x = 33,193.63

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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.