Home / 68,076.23-102,114.39-21,332.75

Finding the Fourth Proportional to 68,076.23, 102,114.39 and 21,332.75

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Solution

The fourth proportional to 68,076.23, 102,114.39 and 21,332.75 is: 31,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,076.23 : 102,114.39 = 21,332.75 : x
  2. Step 2: Convert to fraction form
    68,076.23/102,114.39 = 21,332.75/x
  3. Step 3: Cross multiply
    68,076.23x = 102,114.39 × 21,332.75
  4. Step 4: Simplify right side
    68,076.23x = 2,178,380,753.27
  5. Step 5: Solve for x
    x = 2,178,380,753.27/68,076.23
  6. Step 6: Final answer
    x = 31,999.14

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1.5x scale

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.