Home / 78,276.35-117,318.30-36,097.88

Finding the Fourth Proportional to 78,276.35, 117,318.30 and 36,097.88

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Solution

The fourth proportional to 78,276.35, 117,318.30 and 36,097.88 is: 54,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.35 : 117,318.30 = 36,097.88 : x
  2. Step 2: Convert to fraction form
    78,276.35/117,318.30 = 36,097.88/x
  3. Step 3: Cross multiply
    78,276.35x = 117,318.30 × 36,097.88
  4. Step 4: Simplify right side
    78,276.35x = 4,234,941,624.73
  5. Step 5: Solve for x
    x = 4,234,941,624.73/78,276.35
  6. Step 6: Final answer
    x = 54,102.44

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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.