Home / 81,862.25-122,596.38-55,487.03

Finding the Fourth Proportional to 81,862.25, 122,596.38 and 55,487.03

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Solution

The fourth proportional to 81,862.25, 122,596.38 and 55,487.03 is: 83,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,862.25 : 122,596.38 = 55,487.03 : x
  2. Step 2: Convert to fraction form
    81,862.25/122,596.38 = 55,487.03/x
  3. Step 3: Cross multiply
    81,862.25x = 122,596.38 × 55,487.03
  4. Step 4: Simplify right side
    81,862.25x = 6,802,508,401.97
  5. Step 5: Solve for x
    x = 6,802,508,401.97/81,862.25
  6. Step 6: Final answer
    x = 83,097.02

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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.