Home / 81,914.52-122,862.10-48,200.76

Finding the Fourth Proportional to 81,914.52, 122,862.10 and 48,200.76

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Solution

The fourth proportional to 81,914.52, 122,862.10 and 48,200.76 is: 72,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.52 : 122,862.10 = 48,200.76 : x
  2. Step 2: Convert to fraction form
    81,914.52/122,862.10 = 48,200.76/x
  3. Step 3: Cross multiply
    81,914.52x = 122,862.10 × 48,200.76
  4. Step 4: Simplify right side
    81,914.52x = 5,922,046,595.20
  5. Step 5: Solve for x
    x = 5,922,046,595.20/81,914.52
  6. Step 6: Final answer
    x = 72,295.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.