Home / 89,711.44-123,811.46-49,429.28

Finding the Fourth Proportional to 89,711.44, 123,811.46 and 49,429.28

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Solution

The fourth proportional to 89,711.44, 123,811.46 and 49,429.28 is: 68,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,711.44 : 123,811.46 = 49,429.28 : x
  2. Step 2: Convert to fraction form
    89,711.44/123,811.46 = 49,429.28/x
  3. Step 3: Cross multiply
    89,711.44x = 123,811.46 × 49,429.28
  4. Step 4: Simplify right side
    89,711.44x = 6,119,911,323.55
  5. Step 5: Solve for x
    x = 6,119,911,323.55/89,711.44
  6. Step 6: Final answer
    x = 68,217.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.