Home / 81,629.24-122,406.93-29,040.12

Finding the Fourth Proportional to 81,629.24, 122,406.93 and 29,040.12

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Solution

The fourth proportional to 81,629.24, 122,406.93 and 29,040.12 is: 43,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.24 : 122,406.93 = 29,040.12 : x
  2. Step 2: Convert to fraction form
    81,629.24/122,406.93 = 29,040.12/x
  3. Step 3: Cross multiply
    81,629.24x = 122,406.93 × 29,040.12
  4. Step 4: Simplify right side
    81,629.24x = 3,554,711,936.03
  5. Step 5: Solve for x
    x = 3,554,711,936.03/81,629.24
  6. Step 6: Final answer
    x = 43,547.04

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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.