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Finding the Fourth Proportional to 56,150, 84,246.90 and 21,092.42

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Solution

The fourth proportional to 56,150, 84,246.90 and 21,092.42 is: 31,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,150 : 84,246.90 = 21,092.42 : x
  2. Step 2: Convert to fraction form
    56,150/84,246.90 = 21,092.42/x
  3. Step 3: Cross multiply
    56,150x = 84,246.90 × 21,092.42
  4. Step 4: Simplify right side
    56,150x = 1,776,970,998.50
  5. Step 5: Solve for x
    x = 1,776,970,998.50/56,150
  6. Step 6: Final answer
    x = 31,646.86

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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.