Home / 81,259.30-121,891.61-27,950.73

Finding the Fourth Proportional to 81,259.30, 121,891.61 and 27,950.73

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Solution

The fourth proportional to 81,259.30, 121,891.61 and 27,950.73 is: 41,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,259.30 : 121,891.61 = 27,950.73 : x
  2. Step 2: Convert to fraction form
    81,259.30/121,891.61 = 27,950.73/x
  3. Step 3: Cross multiply
    81,259.30x = 121,891.61 × 27,950.73
  4. Step 4: Simplify right side
    81,259.30x = 3,406,959,480.38
  5. Step 5: Solve for x
    x = 3,406,959,480.38/81,259.30
  6. Step 6: Final answer
    x = 41,927.01

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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.