Home / 81,984.63-122,699.16-50,414.68

Finding the Fourth Proportional to 81,984.63, 122,699.16 and 50,414.68

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Solution

The fourth proportional to 81,984.63, 122,699.16 and 50,414.68 is: 75,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.63 : 122,699.16 = 50,414.68 : x
  2. Step 2: Convert to fraction form
    81,984.63/122,699.16 = 50,414.68/x
  3. Step 3: Cross multiply
    81,984.63x = 122,699.16 × 50,414.68
  4. Step 4: Simplify right side
    81,984.63x = 6,185,838,585.09
  5. Step 5: Solve for x
    x = 6,185,838,585.09/81,984.63
  6. Step 6: Final answer
    x = 75,451.20

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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.