Home / 71,631.45-107,447.05-19,040.93

Finding the Fourth Proportional to 71,631.45, 107,447.05 and 19,040.93

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Solution

The fourth proportional to 71,631.45, 107,447.05 and 19,040.93 is: 28,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,631.45 : 107,447.05 = 19,040.93 : x
  2. Step 2: Convert to fraction form
    71,631.45/107,447.05 = 19,040.93/x
  3. Step 3: Cross multiply
    71,631.45x = 107,447.05 × 19,040.93
  4. Step 4: Simplify right side
    71,631.45x = 2,045,891,757.76
  5. Step 5: Solve for x
    x = 2,045,891,757.76/71,631.45
  6. Step 6: Final answer
    x = 28,561.36

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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.