Home / 78,904.30-118,375.25-22,743.51

Finding the Fourth Proportional to 78,904.30, 118,375.25 and 22,743.51

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Solution

The fourth proportional to 78,904.30, 118,375.25 and 22,743.51 is: 34,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,904.30 : 118,375.25 = 22,743.51 : x
  2. Step 2: Convert to fraction form
    78,904.30/118,375.25 = 22,743.51/x
  3. Step 3: Cross multiply
    78,904.30x = 118,375.25 × 22,743.51
  4. Step 4: Simplify right side
    78,904.30x = 2,692,268,521.40
  5. Step 5: Solve for x
    x = 2,692,268,521.40/78,904.30
  6. Step 6: Final answer
    x = 34,120.68

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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.