Home / 78,743.92-118,115.40-28,827.49

Finding the Fourth Proportional to 78,743.92, 118,115.40 and 28,827.49

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Solution

The fourth proportional to 78,743.92, 118,115.40 and 28,827.49 is: 43,241.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743.92 : 118,115.40 = 28,827.49 : x
  2. Step 2: Convert to fraction form
    78,743.92/118,115.40 = 28,827.49/x
  3. Step 3: Cross multiply
    78,743.92x = 118,115.40 × 28,827.49
  4. Step 4: Simplify right side
    78,743.92x = 3,404,970,512.35
  5. Step 5: Solve for x
    x = 3,404,970,512.35/78,743.92
  6. Step 6: Final answer
    x = 43,241.06

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1.5x scale

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.