Home / 81,344.36-112,197.23-49,515.30

Finding the Fourth Proportional to 81,344.36, 112,197.23 and 49,515.30

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Solution

The fourth proportional to 81,344.36, 112,197.23 and 49,515.30 is: 68,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344.36 : 112,197.23 = 49,515.30 : x
  2. Step 2: Convert to fraction form
    81,344.36/112,197.23 = 49,515.30/x
  3. Step 3: Cross multiply
    81,344.36x = 112,197.23 × 49,515.30
  4. Step 4: Simplify right side
    81,344.36x = 5,555,479,502.62
  5. Step 5: Solve for x
    x = 5,555,479,502.62/81,344.36
  6. Step 6: Final answer
    x = 68,295.82

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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.