Home / 81,519.78-112,497.19-45,226.73

Finding the Fourth Proportional to 81,519.78, 112,497.19 and 45,226.73

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Solution

The fourth proportional to 81,519.78, 112,497.19 and 45,226.73 is: 62,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,519.78 : 112,497.19 = 45,226.73 : x
  2. Step 2: Convert to fraction form
    81,519.78/112,497.19 = 45,226.73/x
  3. Step 3: Cross multiply
    81,519.78x = 112,497.19 × 45,226.73
  4. Step 4: Simplify right side
    81,519.78x = 5,087,880,037.89
  5. Step 5: Solve for x
    x = 5,087,880,037.89/81,519.78
  6. Step 6: Final answer
    x = 62,412.83

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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.