Home / 87,559.52-131,128.72-50,005.78

Finding the Fourth Proportional to 87,559.52, 131,128.72 and 50,005.78

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Solution

The fourth proportional to 87,559.52, 131,128.72 and 50,005.78 is: 74,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,559.52 : 131,128.72 = 50,005.78 : x
  2. Step 2: Convert to fraction form
    87,559.52/131,128.72 = 50,005.78/x
  3. Step 3: Cross multiply
    87,559.52x = 131,128.72 × 50,005.78
  4. Step 4: Simplify right side
    87,559.52x = 6,557,193,924.00
  5. Step 5: Solve for x
    x = 6,557,193,924.00/87,559.52
  6. Step 6: Final answer
    x = 74,888.42

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1.5x scale

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.