Home / 78,878.32-118,286.52-32,114.32

Finding the Fourth Proportional to 78,878.32, 118,286.52 and 32,114.32

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Solution

The fourth proportional to 78,878.32, 118,286.52 and 32,114.32 is: 48,158.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,878.32 : 118,286.52 = 32,114.32 : x
  2. Step 2: Convert to fraction form
    78,878.32/118,286.52 = 32,114.32/x
  3. Step 3: Cross multiply
    78,878.32x = 118,286.52 × 32,114.32
  4. Step 4: Simplify right side
    78,878.32x = 3,798,691,154.97
  5. Step 5: Solve for x
    x = 3,798,691,154.97/78,878.32
  6. Step 6: Final answer
    x = 48,158.88

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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.