Home / 89,518.23-123,532.70-49,231.98

Finding the Fourth Proportional to 89,518.23, 123,532.70 and 49,231.98

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Solution

The fourth proportional to 89,518.23, 123,532.70 and 49,231.98 is: 67,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,518.23 : 123,532.70 = 49,231.98 : x
  2. Step 2: Convert to fraction form
    89,518.23/123,532.70 = 49,231.98/x
  3. Step 3: Cross multiply
    89,518.23x = 123,532.70 × 49,231.98
  4. Step 4: Simplify right side
    89,518.23x = 6,081,759,169.59
  5. Step 5: Solve for x
    x = 6,081,759,169.59/89,518.23
  6. Step 6: Final answer
    x = 67,938.78

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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.