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Finding the Fourth Proportional to 68,453.80, 102,603.90 and 29,004.20

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Solution

The fourth proportional to 68,453.80, 102,603.90 and 29,004.20 is: 43,473.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,453.80 : 102,603.90 = 29,004.20 : x
  2. Step 2: Convert to fraction form
    68,453.80/102,603.90 = 29,004.20/x
  3. Step 3: Cross multiply
    68,453.80x = 102,603.90 × 29,004.20
  4. Step 4: Simplify right side
    68,453.80x = 2,975,944,036.38
  5. Step 5: Solve for x
    x = 2,975,944,036.38/68,453.80
  6. Step 6: Final answer
    x = 43,473.76

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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.