Home / 97,876.91-135,079.62-54,863.72

Finding the Fourth Proportional to 97,876.91, 135,079.62 and 54,863.72

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Solution

The fourth proportional to 97,876.91, 135,079.62 and 54,863.72 is: 75,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,876.91 : 135,079.62 = 54,863.72 : x
  2. Step 2: Convert to fraction form
    97,876.91/135,079.62 = 54,863.72/x
  3. Step 3: Cross multiply
    97,876.91x = 135,079.62 × 54,863.72
  4. Step 4: Simplify right side
    97,876.91x = 7,410,969,773.99
  5. Step 5: Solve for x
    x = 7,410,969,773.99/97,876.91
  6. Step 6: Final answer
    x = 75,717.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.