Home / 79,077.20-118,577.40-43,979.60

Finding the Fourth Proportional to 79,077.20, 118,577.40 and 43,979.60

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Solution

The fourth proportional to 79,077.20, 118,577.40 and 43,979.60 is: 65,948.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.20 : 118,577.40 = 43,979.60 : x
  2. Step 2: Convert to fraction form
    79,077.20/118,577.40 = 43,979.60/x
  3. Step 3: Cross multiply
    79,077.20x = 118,577.40 × 43,979.60
  4. Step 4: Simplify right side
    79,077.20x = 5,214,986,621.04
  5. Step 5: Solve for x
    x = 5,214,986,621.04/79,077.20
  6. Step 6: Final answer
    x = 65,948.04

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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.