Home / 83,813.78-125,728.26-27,654.05

Finding the Fourth Proportional to 83,813.78, 125,728.26 and 27,654.05

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Solution

The fourth proportional to 83,813.78, 125,728.26 and 27,654.05 is: 41,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,813.78 : 125,728.26 = 27,654.05 : x
  2. Step 2: Convert to fraction form
    83,813.78/125,728.26 = 27,654.05/x
  3. Step 3: Cross multiply
    83,813.78x = 125,728.26 × 27,654.05
  4. Step 4: Simplify right side
    83,813.78x = 3,476,894,959.81
  5. Step 5: Solve for x
    x = 3,476,894,959.81/83,813.78
  6. Step 6: Final answer
    x = 41,483.57

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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.