Home / 72,270.38-108,360-34,839.87

Finding the Fourth Proportional to 72,270.38, 108,360 and 34,839.87

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Solution

The fourth proportional to 72,270.38, 108,360 and 34,839.87 is: 52,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.38 : 108,360 = 34,839.87 : x
  2. Step 2: Convert to fraction form
    72,270.38/108,360 = 34,839.87/x
  3. Step 3: Cross multiply
    72,270.38x = 108,360 × 34,839.87
  4. Step 4: Simplify right side
    72,270.38x = 3,775,248,313.20
  5. Step 5: Solve for x
    x = 3,775,248,313.20/72,270.38
  6. Step 6: Final answer
    x = 52,237.84

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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.