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Finding the Fourth Proportional to 52,747.40, 79,131.90 and 17,712.20

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Solution

The fourth proportional to 52,747.40, 79,131.90 and 17,712.20 is: 26,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,747.40 : 79,131.90 = 17,712.20 : x
  2. Step 2: Convert to fraction form
    52,747.40/79,131.90 = 17,712.20/x
  3. Step 3: Cross multiply
    52,747.40x = 79,131.90 × 17,712.20
  4. Step 4: Simplify right side
    52,747.40x = 1,401,600,039.18
  5. Step 5: Solve for x
    x = 1,401,600,039.18/52,747.40
  6. Step 6: Final answer
    x = 26,571.93

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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.