Home / 51,989.20-77,850.96-28,589.92

Finding the Fourth Proportional to 51,989.20, 77,850.96 and 28,589.92

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Solution

The fourth proportional to 51,989.20, 77,850.96 and 28,589.92 is: 42,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.20 : 77,850.96 = 28,589.92 : x
  2. Step 2: Convert to fraction form
    51,989.20/77,850.96 = 28,589.92/x
  3. Step 3: Cross multiply
    51,989.20x = 77,850.96 × 28,589.92
  4. Step 4: Simplify right side
    51,989.20x = 2,225,752,718.32
  5. Step 5: Solve for x
    x = 2,225,752,718.32/51,989.20
  6. Step 6: Final answer
    x = 42,811.83

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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.