Home / 83,664.10-115,455.82-45,422.90

Finding the Fourth Proportional to 83,664.10, 115,455.82 and 45,422.90

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Solution

The fourth proportional to 83,664.10, 115,455.82 and 45,422.90 is: 62,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,664.10 : 115,455.82 = 45,422.90 : x
  2. Step 2: Convert to fraction form
    83,664.10/115,455.82 = 45,422.90/x
  3. Step 3: Cross multiply
    83,664.10x = 115,455.82 × 45,422.90
  4. Step 4: Simplify right side
    83,664.10x = 5,244,337,796.60
  5. Step 5: Solve for x
    x = 5,244,337,796.60/83,664.10
  6. Step 6: Final answer
    x = 62,683.25

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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.