Home / 80,802.12-121,167.54-43,350.96

Finding the Fourth Proportional to 80,802.12, 121,167.54 and 43,350.96

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Solution

The fourth proportional to 80,802.12, 121,167.54 and 43,350.96 is: 65,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,802.12 : 121,167.54 = 43,350.96 : x
  2. Step 2: Convert to fraction form
    80,802.12/121,167.54 = 43,350.96/x
  3. Step 3: Cross multiply
    80,802.12x = 121,167.54 × 43,350.96
  4. Step 4: Simplify right side
    80,802.12x = 5,252,729,179.84
  5. Step 5: Solve for x
    x = 5,252,729,179.84/80,802.12
  6. Step 6: Final answer
    x = 65,007.32

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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.