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Finding the Fourth Proportional to 61,869.54, 85,381.86 and 36,371.22

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Solution

The fourth proportional to 61,869.54, 85,381.86 and 36,371.22 is: 50,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.54 : 85,381.86 = 36,371.22 : x
  2. Step 2: Convert to fraction form
    61,869.54/85,381.86 = 36,371.22/x
  3. Step 3: Cross multiply
    61,869.54x = 85,381.86 × 36,371.22
  4. Step 4: Simplify right side
    61,869.54x = 3,105,442,414.07
  5. Step 5: Solve for x
    x = 3,105,442,414.07/61,869.54
  6. Step 6: Final answer
    x = 50,193.40

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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.