Home / 89,711.75-134,523.86-51,238.78

Finding the Fourth Proportional to 89,711.75, 134,523.86 and 51,238.78

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Solution

The fourth proportional to 89,711.75, 134,523.86 and 51,238.78 is: 76,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,711.75 : 134,523.86 = 51,238.78 : x
  2. Step 2: Convert to fraction form
    89,711.75/134,523.86 = 51,238.78/x
  3. Step 3: Cross multiply
    89,711.75x = 134,523.86 × 51,238.78
  4. Step 4: Simplify right side
    89,711.75x = 6,892,837,874.79
  5. Step 5: Solve for x
    x = 6,892,837,874.79/89,711.75
  6. Step 6: Final answer
    x = 76,833.16

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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.