Home / 76,754.20-105,920.68-43,220.44

Finding the Fourth Proportional to 76,754.20, 105,920.68 and 43,220.44

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Solution

The fourth proportional to 76,754.20, 105,920.68 and 43,220.44 is: 59,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,754.20 : 105,920.68 = 43,220.44 : x
  2. Step 2: Convert to fraction form
    76,754.20/105,920.68 = 43,220.44/x
  3. Step 3: Cross multiply
    76,754.20x = 105,920.68 × 43,220.44
  4. Step 4: Simplify right side
    76,754.20x = 4,577,938,394.70
  5. Step 5: Solve for x
    x = 4,577,938,394.70/76,754.20
  6. Step 6: Final answer
    x = 59,644.14

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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.