Home / 89,121.64-133,712.25-29,152.85

Finding the Fourth Proportional to 89,121.64, 133,712.25 and 29,152.85

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Solution

The fourth proportional to 89,121.64, 133,712.25 and 29,152.85 is: 43,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.64 : 133,712.25 = 29,152.85 : x
  2. Step 2: Convert to fraction form
    89,121.64/133,712.25 = 29,152.85/x
  3. Step 3: Cross multiply
    89,121.64x = 133,712.25 × 29,152.85
  4. Step 4: Simplify right side
    89,121.64x = 3,898,093,141.66
  5. Step 5: Solve for x
    x = 3,898,093,141.66/89,121.64
  6. Step 6: Final answer
    x = 43,739.02

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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.