Home / 68,021.52-102,066.84-30,574.05

Finding the Fourth Proportional to 68,021.52, 102,066.84 and 30,574.05

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Solution

The fourth proportional to 68,021.52, 102,066.84 and 30,574.05 is: 45,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.52 : 102,066.84 = 30,574.05 : x
  2. Step 2: Convert to fraction form
    68,021.52/102,066.84 = 30,574.05/x
  3. Step 3: Cross multiply
    68,021.52x = 102,066.84 × 30,574.05
  4. Step 4: Simplify right side
    68,021.52x = 3,120,596,669.50
  5. Step 5: Solve for x
    x = 3,120,596,669.50/68,021.52
  6. Step 6: Final answer
    x = 45,876.61

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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.