Home / 55,945.30-84,015.15-54,195.70

Finding the Fourth Proportional to 55,945.30, 84,015.15 and 54,195.70

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Solution

The fourth proportional to 55,945.30, 84,015.15 and 54,195.70 is: 81,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,945.30 : 84,015.15 = 54,195.70 : x
  2. Step 2: Convert to fraction form
    55,945.30/84,015.15 = 54,195.70/x
  3. Step 3: Cross multiply
    55,945.30x = 84,015.15 × 54,195.70
  4. Step 4: Simplify right side
    55,945.30x = 4,553,259,864.86
  5. Step 5: Solve for x
    x = 4,553,259,864.86/55,945.30
  6. Step 6: Final answer
    x = 81,387.71

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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.