Home / 74,123.16-111,205.52-29,781.04

Finding the Fourth Proportional to 74,123.16, 111,205.52 and 29,781.04

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Solution

The fourth proportional to 74,123.16, 111,205.52 and 29,781.04 is: 44,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.16 : 111,205.52 = 29,781.04 : x
  2. Step 2: Convert to fraction form
    74,123.16/111,205.52 = 29,781.04/x
  3. Step 3: Cross multiply
    74,123.16x = 111,205.52 × 29,781.04
  4. Step 4: Simplify right side
    74,123.16x = 3,311,816,039.34
  5. Step 5: Solve for x
    x = 3,311,816,039.34/74,123.16
  6. Step 6: Final answer
    x = 44,679.91

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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.