Home / 71,441.85-107,167.23-18,851.39

Finding the Fourth Proportional to 71,441.85, 107,167.23 and 18,851.39

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Solution

The fourth proportional to 71,441.85, 107,167.23 and 18,851.39 is: 28,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,441.85 : 107,167.23 = 18,851.39 : x
  2. Step 2: Convert to fraction form
    71,441.85/107,167.23 = 18,851.39/x
  3. Step 3: Cross multiply
    71,441.85x = 107,167.23 × 18,851.39
  4. Step 4: Simplify right side
    71,441.85x = 2,020,250,712.11
  5. Step 5: Solve for x
    x = 2,020,250,712.11/71,441.85
  6. Step 6: Final answer
    x = 28,278.25

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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.