Home / 85,383.24-127,757.66-53,644.70

Finding the Fourth Proportional to 85,383.24, 127,757.66 and 53,644.70

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Solution

The fourth proportional to 85,383.24, 127,757.66 and 53,644.70 is: 80,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,383.24 : 127,757.66 = 53,644.70 : x
  2. Step 2: Convert to fraction form
    85,383.24/127,757.66 = 53,644.70/x
  3. Step 3: Cross multiply
    85,383.24x = 127,757.66 × 53,644.70
  4. Step 4: Simplify right side
    85,383.24x = 6,853,521,343.40
  5. Step 5: Solve for x
    x = 6,853,521,343.40/85,383.24
  6. Step 6: Final answer
    x = 80,267.76

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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.