Home / 81,193.46-112,046.49-45,383.36

Finding the Fourth Proportional to 81,193.46, 112,046.49 and 45,383.36

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Solution

The fourth proportional to 81,193.46, 112,046.49 and 45,383.36 is: 62,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.46 : 112,046.49 = 45,383.36 : x
  2. Step 2: Convert to fraction form
    81,193.46/112,046.49 = 45,383.36/x
  3. Step 3: Cross multiply
    81,193.46x = 112,046.49 × 45,383.36
  4. Step 4: Simplify right side
    81,193.46x = 5,085,045,632.17
  5. Step 5: Solve for x
    x = 5,085,045,632.17/81,193.46
  6. Step 6: Final answer
    x = 62,628.76

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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.