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Finding the Fourth Proportional to 61,404.70, 92,107.05 and 21,959.42

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Solution

The fourth proportional to 61,404.70, 92,107.05 and 21,959.42 is: 32,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,404.70 : 92,107.05 = 21,959.42 : x
  2. Step 2: Convert to fraction form
    61,404.70/92,107.05 = 21,959.42/x
  3. Step 3: Cross multiply
    61,404.70x = 92,107.05 × 21,959.42
  4. Step 4: Simplify right side
    61,404.70x = 2,022,617,395.91
  5. Step 5: Solve for x
    x = 2,022,617,395.91/61,404.70
  6. Step 6: Final answer
    x = 32,939.13

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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.