Home / 74,154.52-111,154.41-36,691.21

Finding the Fourth Proportional to 74,154.52, 111,154.41 and 36,691.21

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Solution

The fourth proportional to 74,154.52, 111,154.41 and 36,691.21 is: 54,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154.52 : 111,154.41 = 36,691.21 : x
  2. Step 2: Convert to fraction form
    74,154.52/111,154.41 = 36,691.21/x
  3. Step 3: Cross multiply
    74,154.52x = 111,154.41 × 36,691.21
  4. Step 4: Simplify right side
    74,154.52x = 4,078,389,799.74
  5. Step 5: Solve for x
    x = 4,078,389,799.74/74,154.52
  6. Step 6: Final answer
    x = 54,998.53

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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.