Home / 71,609.45-107,444.54-38,320.88

Finding the Fourth Proportional to 71,609.45, 107,444.54 and 38,320.88

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Solution

The fourth proportional to 71,609.45, 107,444.54 and 38,320.88 is: 57,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,609.45 : 107,444.54 = 38,320.88 : x
  2. Step 2: Convert to fraction form
    71,609.45/107,444.54 = 38,320.88/x
  3. Step 3: Cross multiply
    71,609.45x = 107,444.54 × 38,320.88
  4. Step 4: Simplify right side
    71,609.45x = 4,117,368,882.57
  5. Step 5: Solve for x
    x = 4,117,368,882.57/71,609.45
  6. Step 6: Final answer
    x = 57,497.57

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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.