Home / 85,306.80-127,983.45-26,141.16

Finding the Fourth Proportional to 85,306.80, 127,983.45 and 26,141.16

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Solution

The fourth proportional to 85,306.80, 127,983.45 and 26,141.16 is: 39,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,306.80 : 127,983.45 = 26,141.16 : x
  2. Step 2: Convert to fraction form
    85,306.80/127,983.45 = 26,141.16/x
  3. Step 3: Cross multiply
    85,306.80x = 127,983.45 × 26,141.16
  4. Step 4: Simplify right side
    85,306.80x = 3,345,635,843.80
  5. Step 5: Solve for x
    x = 3,345,635,843.80/85,306.80
  6. Step 6: Final answer
    x = 39,218.86

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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.