Home / 72,169.31-108,352.13-40,601.58

Finding the Fourth Proportional to 72,169.31, 108,352.13 and 40,601.58

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Solution

The fourth proportional to 72,169.31, 108,352.13 and 40,601.58 is: 60,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.31 : 108,352.13 = 40,601.58 : x
  2. Step 2: Convert to fraction form
    72,169.31/108,352.13 = 40,601.58/x
  3. Step 3: Cross multiply
    72,169.31x = 108,352.13 × 40,601.58
  4. Step 4: Simplify right side
    72,169.31x = 4,399,267,945.25
  5. Step 5: Solve for x
    x = 4,399,267,945.25/72,169.31
  6. Step 6: Final answer
    x = 60,957.60

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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.