Home / 81,812.28-122,718.58-22,648.13

Finding the Fourth Proportional to 81,812.28, 122,718.58 and 22,648.13

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Solution

The fourth proportional to 81,812.28, 122,718.58 and 22,648.13 is: 33,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,812.28 : 122,718.58 = 22,648.13 : x
  2. Step 2: Convert to fraction form
    81,812.28/122,718.58 = 22,648.13/x
  3. Step 3: Cross multiply
    81,812.28x = 122,718.58 × 22,648.13
  4. Step 4: Simplify right side
    81,812.28x = 2,779,345,739.66
  5. Step 5: Solve for x
    x = 2,779,345,739.66/81,812.28
  6. Step 6: Final answer
    x = 33,972.23

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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.