Home / 78,766.26-118,047.33-31,993.62

Finding the Fourth Proportional to 78,766.26, 118,047.33 and 31,993.62

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Solution

The fourth proportional to 78,766.26, 118,047.33 and 31,993.62 is: 47,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.26 : 118,047.33 = 31,993.62 : x
  2. Step 2: Convert to fraction form
    78,766.26/118,047.33 = 31,993.62/x
  3. Step 3: Cross multiply
    78,766.26x = 118,047.33 × 31,993.62
  4. Step 4: Simplify right side
    78,766.26x = 3,776,761,418.03
  5. Step 5: Solve for x
    x = 3,776,761,418.03/78,766.26
  6. Step 6: Final answer
    x = 47,948.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.