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Finding the Fourth Proportional to 87,204.60, 130,747.32 and 45,067.32

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Solution

The fourth proportional to 87,204.60, 130,747.32 and 45,067.32 is: 67,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,204.60 : 130,747.32 = 45,067.32 : x
  2. Step 2: Convert to fraction form
    87,204.60/130,747.32 = 45,067.32/x
  3. Step 3: Cross multiply
    87,204.60x = 130,747.32 × 45,067.32
  4. Step 4: Simplify right side
    87,204.60x = 5,892,431,309.58
  5. Step 5: Solve for x
    x = 5,892,431,309.58/87,204.60
  6. Step 6: Final answer
    x = 67,570.19

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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.