Home / 89,814.24-123,940.80-49,529.70

Finding the Fourth Proportional to 89,814.24, 123,940.80 and 49,529.70

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Solution

The fourth proportional to 89,814.24, 123,940.80 and 49,529.70 is: 68,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,814.24 : 123,940.80 = 49,529.70 : x
  2. Step 2: Convert to fraction form
    89,814.24/123,940.80 = 49,529.70/x
  3. Step 3: Cross multiply
    89,814.24x = 123,940.80 × 49,529.70
  4. Step 4: Simplify right side
    89,814.24x = 6,138,750,641.76
  5. Step 5: Solve for x
    x = 6,138,750,641.76/89,814.24
  6. Step 6: Final answer
    x = 68,349.41

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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.