Home / 69,135.04-103,712.56-29,691.84

Finding the Fourth Proportional to 69,135.04, 103,712.56 and 29,691.84

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Solution

The fourth proportional to 69,135.04, 103,712.56 and 29,691.84 is: 44,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.04 : 103,712.56 = 29,691.84 : x
  2. Step 2: Convert to fraction form
    69,135.04/103,712.56 = 29,691.84/x
  3. Step 3: Cross multiply
    69,135.04x = 103,712.56 × 29,691.84
  4. Step 4: Simplify right side
    69,135.04x = 3,079,416,737.51
  5. Step 5: Solve for x
    x = 3,079,416,737.51/69,135.04
  6. Step 6: Final answer
    x = 44,542.05

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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.