Home / 87,187.64-130,759.56-45,016.83

Finding the Fourth Proportional to 87,187.64, 130,759.56 and 45,016.83

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Solution

The fourth proportional to 87,187.64, 130,759.56 and 45,016.83 is: 67,513.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,187.64 : 130,759.56 = 45,016.83 : x
  2. Step 2: Convert to fraction form
    87,187.64/130,759.56 = 45,016.83/x
  3. Step 3: Cross multiply
    87,187.64x = 130,759.56 × 45,016.83
  4. Step 4: Simplify right side
    87,187.64x = 5,886,380,883.39
  5. Step 5: Solve for x
    x = 5,886,380,883.39/87,187.64
  6. Step 6: Final answer
    x = 67,513.94

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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.