Home / 78,680.07-118,049.25-36,582.75

Finding the Fourth Proportional to 78,680.07, 118,049.25 and 36,582.75

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Solution

The fourth proportional to 78,680.07, 118,049.25 and 36,582.75 is: 54,887.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,680.07 : 118,049.25 = 36,582.75 : x
  2. Step 2: Convert to fraction form
    78,680.07/118,049.25 = 36,582.75/x
  3. Step 3: Cross multiply
    78,680.07x = 118,049.25 × 36,582.75
  4. Step 4: Simplify right side
    78,680.07x = 4,318,566,200.44
  5. Step 5: Solve for x
    x = 4,318,566,200.44/78,680.07
  6. Step 6: Final answer
    x = 54,887.68

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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.