Home / 75,243.94-112,868.30-27,870.95

Finding the Fourth Proportional to 75,243.94, 112,868.30 and 27,870.95

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Solution

The fourth proportional to 75,243.94, 112,868.30 and 27,870.95 is: 41,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,243.94 : 112,868.30 = 27,870.95 : x
  2. Step 2: Convert to fraction form
    75,243.94/112,868.30 = 27,870.95/x
  3. Step 3: Cross multiply
    75,243.94x = 112,868.30 × 27,870.95
  4. Step 4: Simplify right side
    75,243.94x = 3,145,747,097.73
  5. Step 5: Solve for x
    x = 3,145,747,097.73/75,243.94
  6. Step 6: Final answer
    x = 41,807.32

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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.