Home / 68,790.03-103,163.52-28,808.94

Finding the Fourth Proportional to 68,790.03, 103,163.52 and 28,808.94

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Solution

The fourth proportional to 68,790.03, 103,163.52 and 28,808.94 is: 43,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,790.03 : 103,163.52 = 28,808.94 : x
  2. Step 2: Convert to fraction form
    68,790.03/103,163.52 = 28,808.94/x
  3. Step 3: Cross multiply
    68,790.03x = 103,163.52 × 28,808.94
  4. Step 4: Simplify right side
    68,790.03x = 2,972,031,862.62
  5. Step 5: Solve for x
    x = 2,972,031,862.62/68,790.03
  6. Step 6: Final answer
    x = 43,204.40

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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.