Home / 81,536.56-112,532.75-49,723.91

Finding the Fourth Proportional to 81,536.56, 112,532.75 and 49,723.91

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Solution

The fourth proportional to 81,536.56, 112,532.75 and 49,723.91 is: 68,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,536.56 : 112,532.75 = 49,723.91 : x
  2. Step 2: Convert to fraction form
    81,536.56/112,532.75 = 49,723.91/x
  3. Step 3: Cross multiply
    81,536.56x = 112,532.75 × 49,723.91
  4. Step 4: Simplify right side
    81,536.56x = 5,595,568,130.23
  5. Step 5: Solve for x
    x = 5,595,568,130.23/81,536.56
  6. Step 6: Final answer
    x = 68,626.49

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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.