Home / 81,177.40-111,594.65-69,805.24

Finding the Fourth Proportional to 81,177.40, 111,594.65 and 69,805.24

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Solution

The fourth proportional to 81,177.40, 111,594.65 and 69,805.24 is: 95,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177.40 : 111,594.65 = 69,805.24 : x
  2. Step 2: Convert to fraction form
    81,177.40/111,594.65 = 69,805.24/x
  3. Step 3: Cross multiply
    81,177.40x = 111,594.65 × 69,805.24
  4. Step 4: Simplify right side
    81,177.40x = 7,789,891,325.97
  5. Step 5: Solve for x
    x = 7,789,891,325.97/81,177.40
  6. Step 6: Final answer
    x = 95,961.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.