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Finding the Fourth Proportional to 75,338.72, 103,969.68 and 41,804

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Solution

The fourth proportional to 75,338.72, 103,969.68 and 41,804 is: 57,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,338.72 : 103,969.68 = 41,804 : x
  2. Step 2: Convert to fraction form
    75,338.72/103,969.68 = 41,804/x
  3. Step 3: Cross multiply
    75,338.72x = 103,969.68 × 41,804
  4. Step 4: Simplify right side
    75,338.72x = 4,346,348,502.72
  5. Step 5: Solve for x
    x = 4,346,348,502.72/75,338.72
  6. Step 6: Final answer
    x = 57,690.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.