Home / 74,123.66-111,206.26-29,781.54

Finding the Fourth Proportional to 74,123.66, 111,206.26 and 29,781.54

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Solution

The fourth proportional to 74,123.66, 111,206.26 and 29,781.54 is: 44,680.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.66 : 111,206.26 = 29,781.54 : x
  2. Step 2: Convert to fraction form
    74,123.66/111,206.26 = 29,781.54/x
  3. Step 3: Cross multiply
    74,123.66x = 111,206.26 × 29,781.54
  4. Step 4: Simplify right side
    74,123.66x = 3,311,893,680.44
  5. Step 5: Solve for x
    x = 3,311,893,680.44/74,123.66
  6. Step 6: Final answer
    x = 44,680.66

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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.