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Finding the Fourth Proportional to 60,745.86, 91,100.97 and 21,295.62

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Solution

The fourth proportional to 60,745.86, 91,100.97 and 21,295.62 is: 31,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,745.86 : 91,100.97 = 21,295.62 : x
  2. Step 2: Convert to fraction form
    60,745.86/91,100.97 = 21,295.62/x
  3. Step 3: Cross multiply
    60,745.86x = 91,100.97 × 21,295.62
  4. Step 4: Simplify right side
    60,745.86x = 1,940,051,638.75
  5. Step 5: Solve for x
    x = 1,940,051,638.75/60,745.86
  6. Step 6: Final answer
    x = 31,937.18

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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.