Home / 81,244.68-111,868.40-71,116.44

Finding the Fourth Proportional to 81,244.68, 111,868.40 and 71,116.44

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Solution

The fourth proportional to 81,244.68, 111,868.40 and 71,116.44 is: 97,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,244.68 : 111,868.40 = 71,116.44 : x
  2. Step 2: Convert to fraction form
    81,244.68/111,868.40 = 71,116.44/x
  3. Step 3: Cross multiply
    81,244.68x = 111,868.40 × 71,116.44
  4. Step 4: Simplify right side
    81,244.68x = 7,955,682,356.50
  5. Step 5: Solve for x
    x = 7,955,682,356.50/81,244.68
  6. Step 6: Final answer
    x = 97,922.50

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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.