Home / 87,333.45-130,906.73-45,171.08

Finding the Fourth Proportional to 87,333.45, 130,906.73 and 45,171.08

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Solution

The fourth proportional to 87,333.45, 130,906.73 and 45,171.08 is: 67,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333.45 : 130,906.73 = 45,171.08 : x
  2. Step 2: Convert to fraction form
    87,333.45/130,906.73 = 45,171.08/x
  3. Step 3: Cross multiply
    87,333.45x = 130,906.73 × 45,171.08
  4. Step 4: Simplify right side
    87,333.45x = 5,913,198,322.66
  5. Step 5: Solve for x
    x = 5,913,198,322.66/87,333.45
  6. Step 6: Final answer
    x = 67,708.29

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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.