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Finding the Fourth Proportional to 55,266.60, 82,899.90 and 45,425.10

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Solution

The fourth proportional to 55,266.60, 82,899.90 and 45,425.10 is: 68,137.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,266.60 : 82,899.90 = 45,425.10 : x
  2. Step 2: Convert to fraction form
    55,266.60/82,899.90 = 45,425.10/x
  3. Step 3: Cross multiply
    55,266.60x = 82,899.90 × 45,425.10
  4. Step 4: Simplify right side
    55,266.60x = 3,765,736,247.49
  5. Step 5: Solve for x
    x = 3,765,736,247.49/55,266.60
  6. Step 6: Final answer
    x = 68,137.65

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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.