Home / 79,876.62-110,151-61,965.09

Finding the Fourth Proportional to 79,876.62, 110,151 and 61,965.09

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Solution

The fourth proportional to 79,876.62, 110,151 and 61,965.09 is: 85,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,876.62 : 110,151 = 61,965.09 : x
  2. Step 2: Convert to fraction form
    79,876.62/110,151 = 61,965.09/x
  3. Step 3: Cross multiply
    79,876.62x = 110,151 × 61,965.09
  4. Step 4: Simplify right side
    79,876.62x = 6,825,516,628.59
  5. Step 5: Solve for x
    x = 6,825,516,628.59/79,876.62
  6. Step 6: Final answer
    x = 85,450.74

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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.