Home / 41,129.67-61,612.29-18,912.60

Finding the Fourth Proportional to 41,129.67, 61,612.29 and 18,912.60

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Solution

The fourth proportional to 41,129.67, 61,612.29 and 18,912.60 is: 28,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.67 : 61,612.29 = 18,912.60 : x
  2. Step 2: Convert to fraction form
    41,129.67/61,612.29 = 18,912.60/x
  3. Step 3: Cross multiply
    41,129.67x = 61,612.29 × 18,912.60
  4. Step 4: Simplify right side
    41,129.67x = 1,165,248,595.85
  5. Step 5: Solve for x
    x = 1,165,248,595.85/41,129.67
  6. Step 6: Final answer
    x = 28,331.10

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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.