Home / 61,623.12-91,988.94-54,149.76

Finding the Fourth Proportional to 61,623.12, 91,988.94 and 54,149.76

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Solution

The fourth proportional to 61,623.12, 91,988.94 and 54,149.76 is: 80,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,623.12 : 91,988.94 = 54,149.76 : x
  2. Step 2: Convert to fraction form
    61,623.12/91,988.94 = 54,149.76/x
  3. Step 3: Cross multiply
    61,623.12x = 91,988.94 × 54,149.76
  4. Step 4: Simplify right side
    61,623.12x = 4,981,179,023.65
  5. Step 5: Solve for x
    x = 4,981,179,023.65/61,623.12
  6. Step 6: Final answer
    x = 80,832.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.