Home / 81,460.57-122,209.98-25,297.78

Finding the Fourth Proportional to 81,460.57, 122,209.98 and 25,297.78

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Solution

The fourth proportional to 81,460.57, 122,209.98 and 25,297.78 is: 37,952.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,460.57 : 122,209.98 = 25,297.78 : x
  2. Step 2: Convert to fraction form
    81,460.57/122,209.98 = 25,297.78/x
  3. Step 3: Cross multiply
    81,460.57x = 122,209.98 × 25,297.78
  4. Step 4: Simplify right side
    81,460.57x = 3,091,641,187.84
  5. Step 5: Solve for x
    x = 3,091,641,187.84/81,460.57
  6. Step 6: Final answer
    x = 37,952.61

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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.