Home / 81,955.73-113,103.11-50,114.63

Finding the Fourth Proportional to 81,955.73, 113,103.11 and 50,114.63

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Solution

The fourth proportional to 81,955.73, 113,103.11 and 50,114.63 is: 69,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,955.73 : 113,103.11 = 50,114.63 : x
  2. Step 2: Convert to fraction form
    81,955.73/113,103.11 = 50,114.63/x
  3. Step 3: Cross multiply
    81,955.73x = 113,103.11 × 50,114.63
  4. Step 4: Simplify right side
    81,955.73x = 5,668,120,069.27
  5. Step 5: Solve for x
    x = 5,668,120,069.27/81,955.73
  6. Step 6: Final answer
    x = 69,160.76

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1.5x scale

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.