Home / 71,945.28-107,904.84-19,342.48

Finding the Fourth Proportional to 71,945.28, 107,904.84 and 19,342.48

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Solution

The fourth proportional to 71,945.28, 107,904.84 and 19,342.48 is: 29,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,945.28 : 107,904.84 = 19,342.48 : x
  2. Step 2: Convert to fraction form
    71,945.28/107,904.84 = 19,342.48/x
  3. Step 3: Cross multiply
    71,945.28x = 107,904.84 × 19,342.48
  4. Step 4: Simplify right side
    71,945.28x = 2,087,147,209.60
  5. Step 5: Solve for x
    x = 2,087,147,209.60/71,945.28
  6. Step 6: Final answer
    x = 29,010.20

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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.