Home / 78,899.23-108,876.12-43,081.96

Finding the Fourth Proportional to 78,899.23, 108,876.12 and 43,081.96

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Solution

The fourth proportional to 78,899.23, 108,876.12 and 43,081.96 is: 59,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.23 : 108,876.12 = 43,081.96 : x
  2. Step 2: Convert to fraction form
    78,899.23/108,876.12 = 43,081.96/x
  3. Step 3: Cross multiply
    78,899.23x = 108,876.12 × 43,081.96
  4. Step 4: Simplify right side
    78,899.23x = 4,690,596,646.80
  5. Step 5: Solve for x
    x = 4,690,596,646.80/78,899.23
  6. Step 6: Final answer
    x = 59,450.47

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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.