Home / 81,553.30-122,247.33-55,260.70

Finding the Fourth Proportional to 81,553.30, 122,247.33 and 55,260.70

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Solution

The fourth proportional to 81,553.30, 122,247.33 and 55,260.70 is: 82,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,553.30 : 122,247.33 = 55,260.70 : x
  2. Step 2: Convert to fraction form
    81,553.30/122,247.33 = 55,260.70/x
  3. Step 3: Cross multiply
    81,553.30x = 122,247.33 × 55,260.70
  4. Step 4: Simplify right side
    81,553.30x = 6,755,473,028.93
  5. Step 5: Solve for x
    x = 6,755,473,028.93/81,553.30
  6. Step 6: Final answer
    x = 82,835.07

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1.5x scale

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.