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Finding the Fourth Proportional to 74,816.82, 103,249.71 and 40,827.18

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Solution

The fourth proportional to 74,816.82, 103,249.71 and 40,827.18 is: 56,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,816.82 : 103,249.71 = 40,827.18 : x
  2. Step 2: Convert to fraction form
    74,816.82/103,249.71 = 40,827.18/x
  3. Step 3: Cross multiply
    74,816.82x = 103,249.71 × 40,827.18
  4. Step 4: Simplify right side
    74,816.82x = 4,215,394,495.12
  5. Step 5: Solve for x
    x = 4,215,394,495.12/74,816.82
  6. Step 6: Final answer
    x = 56,342.87

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1.5x scale

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.