Home / 51,868.31-77,809.55-18,597.56

Finding the Fourth Proportional to 51,868.31, 77,809.55 and 18,597.56

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Solution

The fourth proportional to 51,868.31, 77,809.55 and 18,597.56 is: 27,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,868.31 : 77,809.55 = 18,597.56 : x
  2. Step 2: Convert to fraction form
    51,868.31/77,809.55 = 18,597.56/x
  3. Step 3: Cross multiply
    51,868.31x = 77,809.55 × 18,597.56
  4. Step 4: Simplify right side
    51,868.31x = 1,447,067,292.66
  5. Step 5: Solve for x
    x = 1,447,067,292.66/51,868.31
  6. Step 6: Final answer
    x = 27,898.87

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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.