Home / 87,975.18-131,950.80-28,803.78

Finding the Fourth Proportional to 87,975.18, 131,950.80 and 28,803.78

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Solution

The fourth proportional to 87,975.18, 131,950.80 and 28,803.78 is: 43,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,975.18 : 131,950.80 = 28,803.78 : x
  2. Step 2: Convert to fraction form
    87,975.18/131,950.80 = 28,803.78/x
  3. Step 3: Cross multiply
    87,975.18x = 131,950.80 × 28,803.78
  4. Step 4: Simplify right side
    87,975.18x = 3,800,681,814.02
  5. Step 5: Solve for x
    x = 3,800,681,814.02/87,975.18
  6. Step 6: Final answer
    x = 43,201.75

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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.