Home / 281,747.11-422,645.27-71,385.05

Finding the Fourth Proportional to 281,747.11, 422,645.27 and 71,385.05

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Solution

The fourth proportional to 281,747.11, 422,645.27 and 71,385.05 is: 107,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,747.11 : 422,645.27 = 71,385.05 : x
  2. Step 2: Convert to fraction form
    281,747.11/422,645.27 = 71,385.05/x
  3. Step 3: Cross multiply
    281,747.11x = 422,645.27 × 71,385.05
  4. Step 4: Simplify right side
    281,747.11x = 30,170,552,254.29
  5. Step 5: Solve for x
    x = 30,170,552,254.29/281,747.11
  6. Step 6: Final answer
    x = 107,083.80

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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.