Home / 80,705.25-121,077.32-25,301.25

Finding the Fourth Proportional to 80,705.25, 121,077.32 and 25,301.25

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Solution

The fourth proportional to 80,705.25, 121,077.32 and 25,301.25 is: 37,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,705.25 : 121,077.32 = 25,301.25 : x
  2. Step 2: Convert to fraction form
    80,705.25/121,077.32 = 25,301.25/x
  3. Step 3: Cross multiply
    80,705.25x = 121,077.32 × 25,301.25
  4. Step 4: Simplify right side
    80,705.25x = 3,063,407,416.14
  5. Step 5: Solve for x
    x = 3,063,407,416.14/80,705.25
  6. Step 6: Final answer
    x = 37,957.97

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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.