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Finding the Fourth Proportional to 77,401.88, 116,122.32 and 21,997.88

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Solution

The fourth proportional to 77,401.88, 116,122.32 and 21,997.88 is: 33,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401.88 : 116,122.32 = 21,997.88 : x
  2. Step 2: Convert to fraction form
    77,401.88/116,122.32 = 21,997.88/x
  3. Step 3: Cross multiply
    77,401.88x = 116,122.32 × 21,997.88
  4. Step 4: Simplify right side
    77,401.88x = 2,554,444,280.07
  5. Step 5: Solve for x
    x = 2,554,444,280.07/77,401.88
  6. Step 6: Final answer
    x = 33,002.36

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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.