Home / 80,895.20-121,083.60-43,363.04

Finding the Fourth Proportional to 80,895.20, 121,083.60 and 43,363.04

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Solution

The fourth proportional to 80,895.20, 121,083.60 and 43,363.04 is: 64,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,895.20 : 121,083.60 = 43,363.04 : x
  2. Step 2: Convert to fraction form
    80,895.20/121,083.60 = 43,363.04/x
  3. Step 3: Cross multiply
    80,895.20x = 121,083.60 × 43,363.04
  4. Step 4: Simplify right side
    80,895.20x = 5,250,552,990.14
  5. Step 5: Solve for x
    x = 5,250,552,990.14/80,895.20
  6. Step 6: Final answer
    x = 64,905.62

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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.