Home / 51,378.66-77,069.36-18,091.15

Finding the Fourth Proportional to 51,378.66, 77,069.36 and 18,091.15

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Solution

The fourth proportional to 51,378.66, 77,069.36 and 18,091.15 is: 27,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.66 : 77,069.36 = 18,091.15 : x
  2. Step 2: Convert to fraction form
    51,378.66/77,069.36 = 18,091.15/x
  3. Step 3: Cross multiply
    51,378.66x = 77,069.36 × 18,091.15
  4. Step 4: Simplify right side
    51,378.66x = 1,394,273,536.47
  5. Step 5: Solve for x
    x = 1,394,273,536.47/51,378.66
  6. Step 6: Final answer
    x = 27,137.21

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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.