Home / 78,854.28-118,177.72-32,081.64

Finding the Fourth Proportional to 78,854.28, 118,177.72 and 32,081.64

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Solution

The fourth proportional to 78,854.28, 118,177.72 and 32,081.64 is: 48,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,854.28 : 118,177.72 = 32,081.64 : x
  2. Step 2: Convert to fraction form
    78,854.28/118,177.72 = 32,081.64/x
  3. Step 3: Cross multiply
    78,854.28x = 118,177.72 × 32,081.64
  4. Step 4: Simplify right side
    78,854.28x = 3,791,335,069.06
  5. Step 5: Solve for x
    x = 3,791,335,069.06/78,854.28
  6. Step 6: Final answer
    x = 48,080.27

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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.