Home / 81,566.30-112,496.56-67,394.54

Finding the Fourth Proportional to 81,566.30, 112,496.56 and 67,394.54

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Solution

The fourth proportional to 81,566.30, 112,496.56 and 67,394.54 is: 92,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566.30 : 112,496.56 = 67,394.54 : x
  2. Step 2: Convert to fraction form
    81,566.30/112,496.56 = 67,394.54/x
  3. Step 3: Cross multiply
    81,566.30x = 112,496.56 × 67,394.54
  4. Step 4: Simplify right side
    81,566.30x = 7,581,653,181.81
  5. Step 5: Solve for x
    x = 7,581,653,181.81/81,566.30
  6. Step 6: Final answer
    x = 92,950.81

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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.