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Finding the Fourth Proportional to 55,240.40, 82,860.60 and 34,245.20

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Solution

The fourth proportional to 55,240.40, 82,860.60 and 34,245.20 is: 51,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,240.40 : 82,860.60 = 34,245.20 : x
  2. Step 2: Convert to fraction form
    55,240.40/82,860.60 = 34,245.20/x
  3. Step 3: Cross multiply
    55,240.40x = 82,860.60 × 34,245.20
  4. Step 4: Simplify right side
    55,240.40x = 2,837,577,819.12
  5. Step 5: Solve for x
    x = 2,837,577,819.12/55,240.40
  6. Step 6: Final answer
    x = 51,367.80

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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.