Home / 77,638.14-107,107.43-50,733.95

Finding the Fourth Proportional to 77,638.14, 107,107.43 and 50,733.95

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Solution

The fourth proportional to 77,638.14, 107,107.43 and 50,733.95 is: 69,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,638.14 : 107,107.43 = 50,733.95 : x
  2. Step 2: Convert to fraction form
    77,638.14/107,107.43 = 50,733.95/x
  3. Step 3: Cross multiply
    77,638.14x = 107,107.43 × 50,733.95
  4. Step 4: Simplify right side
    77,638.14x = 5,433,982,209.04
  5. Step 5: Solve for x
    x = 5,433,982,209.04/77,638.14
  6. Step 6: Final answer
    x = 69,991.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.