Home / 89,135.16-133,716.42-29,144.76

Finding the Fourth Proportional to 89,135.16, 133,716.42 and 29,144.76

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Solution

The fourth proportional to 89,135.16, 133,716.42 and 29,144.76 is: 43,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,135.16 : 133,716.42 = 29,144.76 : x
  2. Step 2: Convert to fraction form
    89,135.16/133,716.42 = 29,144.76/x
  3. Step 3: Cross multiply
    89,135.16x = 133,716.42 × 29,144.76
  4. Step 4: Simplify right side
    89,135.16x = 3,897,132,968.96
  5. Step 5: Solve for x
    x = 3,897,132,968.96/89,135.16
  6. Step 6: Final answer
    x = 43,721.61

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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.