Home / 87,612.78-131,430.10-34,297.87

Finding the Fourth Proportional to 87,612.78, 131,430.10 and 34,297.87

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Solution

The fourth proportional to 87,612.78, 131,430.10 and 34,297.87 is: 51,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,612.78 : 131,430.10 = 34,297.87 : x
  2. Step 2: Convert to fraction form
    87,612.78/131,430.10 = 34,297.87/x
  3. Step 3: Cross multiply
    87,612.78x = 131,430.10 × 34,297.87
  4. Step 4: Simplify right side
    87,612.78x = 4,507,772,198.18
  5. Step 5: Solve for x
    x = 4,507,772,198.18/87,612.78
  6. Step 6: Final answer
    x = 51,451.08

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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.