Home / 105,449.27-145,519.98-57,702.62

Finding the Fourth Proportional to 105,449.27, 145,519.98 and 57,702.62

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Solution

The fourth proportional to 105,449.27, 145,519.98 and 57,702.62 is: 79,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,449.27 : 145,519.98 = 57,702.62 : x
  2. Step 2: Convert to fraction form
    105,449.27/145,519.98 = 57,702.62/x
  3. Step 3: Cross multiply
    105,449.27x = 145,519.98 × 57,702.62
  4. Step 4: Simplify right side
    105,449.27x = 8,396,883,380.75
  5. Step 5: Solve for x
    x = 8,396,883,380.75/105,449.27
  6. Step 6: Final answer
    x = 79,629.61

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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.