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Finding the Fourth Proportional to 77,809.46, 116,706.99 and 21,650.42

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Solution

The fourth proportional to 77,809.46, 116,706.99 and 21,650.42 is: 32,473.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,809.46 : 116,706.99 = 21,650.42 : x
  2. Step 2: Convert to fraction form
    77,809.46/116,706.99 = 21,650.42/x
  3. Step 3: Cross multiply
    77,809.46x = 116,706.99 × 21,650.42
  4. Step 4: Simplify right side
    77,809.46x = 2,526,755,350.44
  5. Step 5: Solve for x
    x = 2,526,755,350.44/77,809.46
  6. Step 6: Final answer
    x = 32,473.63

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1.5x scale

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.