Home / 72,182.09-108,270.70-25,433.75

Finding the Fourth Proportional to 72,182.09, 108,270.70 and 25,433.75

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Solution

The fourth proportional to 72,182.09, 108,270.70 and 25,433.75 is: 38,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,182.09 : 108,270.70 = 25,433.75 : x
  2. Step 2: Convert to fraction form
    72,182.09/108,270.70 = 25,433.75/x
  3. Step 3: Cross multiply
    72,182.09x = 108,270.70 × 25,433.75
  4. Step 4: Simplify right side
    72,182.09x = 2,753,729,916.13
  5. Step 5: Solve for x
    x = 2,753,729,916.13/72,182.09
  6. Step 6: Final answer
    x = 38,149.77

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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.