Home / 80,634.78-120,945.69-50,966.10

Finding the Fourth Proportional to 80,634.78, 120,945.69 and 50,966.10

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Solution

The fourth proportional to 80,634.78, 120,945.69 and 50,966.10 is: 76,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,634.78 : 120,945.69 = 50,966.10 : x
  2. Step 2: Convert to fraction form
    80,634.78/120,945.69 = 50,966.10/x
  3. Step 3: Cross multiply
    80,634.78x = 120,945.69 × 50,966.10
  4. Step 4: Simplify right side
    80,634.78x = 6,164,130,131.11
  5. Step 5: Solve for x
    x = 6,164,130,131.11/80,634.78
  6. Step 6: Final answer
    x = 76,445.05

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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.