Home / 72,321.03-108,497.90-39,040.38

Finding the Fourth Proportional to 72,321.03, 108,497.90 and 39,040.38

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Solution

The fourth proportional to 72,321.03, 108,497.90 and 39,040.38 is: 58,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,321.03 : 108,497.90 = 39,040.38 : x
  2. Step 2: Convert to fraction form
    72,321.03/108,497.90 = 39,040.38/x
  3. Step 3: Cross multiply
    72,321.03x = 108,497.90 × 39,040.38
  4. Step 4: Simplify right side
    72,321.03x = 4,235,799,245.20
  5. Step 5: Solve for x
    x = 4,235,799,245.20/72,321.03
  6. Step 6: Final answer
    x = 58,569.40

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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.