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Finding the Fourth Proportional to 77,401.68, 116,100.09 and 21,997.68

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Solution

The fourth proportional to 77,401.68, 116,100.09 and 21,997.68 is: 32,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401.68 : 116,100.09 = 21,997.68 : x
  2. Step 2: Convert to fraction form
    77,401.68/116,100.09 = 21,997.68/x
  3. Step 3: Cross multiply
    77,401.68x = 116,100.09 × 21,997.68
  4. Step 4: Simplify right side
    77,401.68x = 2,553,932,627.79
  5. Step 5: Solve for x
    x = 2,553,932,627.79/77,401.68
  6. Step 6: Final answer
    x = 32,995.83

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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.