Home / 81,341.30-122,016.31-25,220.18

Finding the Fourth Proportional to 81,341.30, 122,016.31 and 25,220.18

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Solution

The fourth proportional to 81,341.30, 122,016.31 and 25,220.18 is: 37,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,341.30 : 122,016.31 = 25,220.18 : x
  2. Step 2: Convert to fraction form
    81,341.30/122,016.31 = 25,220.18/x
  3. Step 3: Cross multiply
    81,341.30x = 122,016.31 × 25,220.18
  4. Step 4: Simplify right side
    81,341.30x = 3,077,273,301.14
  5. Step 5: Solve for x
    x = 3,077,273,301.14/81,341.30
  6. Step 6: Final answer
    x = 37,831.62

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1.5x scale

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.