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Finding the Fourth Proportional to 61,149.98, 91,738.74 and 21,707.04

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Solution

The fourth proportional to 61,149.98, 91,738.74 and 21,707.04 is: 32,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.98 : 91,738.74 = 21,707.04 : x
  2. Step 2: Convert to fraction form
    61,149.98/91,738.74 = 21,707.04/x
  3. Step 3: Cross multiply
    61,149.98x = 91,738.74 × 21,707.04
  4. Step 4: Simplify right side
    61,149.98x = 1,991,376,498.73
  5. Step 5: Solve for x
    x = 1,991,376,498.73/61,149.98
  6. Step 6: Final answer
    x = 32,565.45

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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.