Home / 68,233.05-102,318.48-28,768.59

Finding the Fourth Proportional to 68,233.05, 102,318.48 and 28,768.59

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Solution

The fourth proportional to 68,233.05, 102,318.48 and 28,768.59 is: 43,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,233.05 : 102,318.48 = 28,768.59 : x
  2. Step 2: Convert to fraction form
    68,233.05/102,318.48 = 28,768.59/x
  3. Step 3: Cross multiply
    68,233.05x = 102,318.48 × 28,768.59
  4. Step 4: Simplify right side
    68,233.05x = 2,943,558,400.54
  5. Step 5: Solve for x
    x = 2,943,558,400.54/68,233.05
  6. Step 6: Final answer
    x = 43,139.77

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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.