Home / 76,617.26-105,732.79-42,165.96

Finding the Fourth Proportional to 76,617.26, 105,732.79 and 42,165.96

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Solution

The fourth proportional to 76,617.26, 105,732.79 and 42,165.96 is: 58,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,617.26 : 105,732.79 = 42,165.96 : x
  2. Step 2: Convert to fraction form
    76,617.26/105,732.79 = 42,165.96/x
  3. Step 3: Cross multiply
    76,617.26x = 105,732.79 × 42,165.96
  4. Step 4: Simplify right side
    76,617.26x = 4,458,324,091.92
  5. Step 5: Solve for x
    x = 4,458,324,091.92/76,617.26
  6. Step 6: Final answer
    x = 58,189.55

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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.