Home / 83,422.72-115,122.65-45,181.37

Finding the Fourth Proportional to 83,422.72, 115,122.65 and 45,181.37

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Solution

The fourth proportional to 83,422.72, 115,122.65 and 45,181.37 is: 62,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,422.72 : 115,122.65 = 45,181.37 : x
  2. Step 2: Convert to fraction form
    83,422.72/115,122.65 = 45,181.37/x
  3. Step 3: Cross multiply
    83,422.72x = 115,122.65 × 45,181.37
  4. Step 4: Simplify right side
    83,422.72x = 5,201,399,227.90
  5. Step 5: Solve for x
    x = 5,201,399,227.90/83,422.72
  6. Step 6: Final answer
    x = 62,349.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.