Home / 78,325.20-108,144.96-48,151

Finding the Fourth Proportional to 78,325.20, 108,144.96 and 48,151

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Solution

The fourth proportional to 78,325.20, 108,144.96 and 48,151 is: 66,482.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,325.20 : 108,144.96 = 48,151 : x
  2. Step 2: Convert to fraction form
    78,325.20/108,144.96 = 48,151/x
  3. Step 3: Cross multiply
    78,325.20x = 108,144.96 × 48,151
  4. Step 4: Simplify right side
    78,325.20x = 5,207,287,968.96
  5. Step 5: Solve for x
    x = 5,207,287,968.96/78,325.20
  6. Step 6: Final answer
    x = 66,482.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.