Home / 87,445.43-120,671.12-51,647.03

Finding the Fourth Proportional to 87,445.43, 120,671.12 and 51,647.03

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Solution

The fourth proportional to 87,445.43, 120,671.12 and 51,647.03 is: 71,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.43 : 120,671.12 = 51,647.03 : x
  2. Step 2: Convert to fraction form
    87,445.43/120,671.12 = 51,647.03/x
  3. Step 3: Cross multiply
    87,445.43x = 120,671.12 × 51,647.03
  4. Step 4: Simplify right side
    87,445.43x = 6,232,304,093.18
  5. Step 5: Solve for x
    x = 6,232,304,093.18/87,445.43
  6. Step 6: Final answer
    x = 71,270.79

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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.