Home / 78,823.82-108,779.19-43,016.14

Finding the Fourth Proportional to 78,823.82, 108,779.19 and 43,016.14

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Solution

The fourth proportional to 78,823.82, 108,779.19 and 43,016.14 is: 59,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,823.82 : 108,779.19 = 43,016.14 : x
  2. Step 2: Convert to fraction form
    78,823.82/108,779.19 = 43,016.14/x
  3. Step 3: Cross multiply
    78,823.82x = 108,779.19 × 43,016.14
  4. Step 4: Simplify right side
    78,823.82x = 4,679,260,651.05
  5. Step 5: Solve for x
    x = 4,679,260,651.05/78,823.82
  6. Step 6: Final answer
    x = 59,363.54

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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.