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Finding the Fourth Proportional to 91,855.56, 137,814 and 35,697.45

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Solution

The fourth proportional to 91,855.56, 137,814 and 35,697.45 is: 53,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855.56 : 137,814 = 35,697.45 : x
  2. Step 2: Convert to fraction form
    91,855.56/137,814 = 35,697.45/x
  3. Step 3: Cross multiply
    91,855.56x = 137,814 × 35,697.45
  4. Step 4: Simplify right side
    91,855.56x = 4,919,608,374.30
  5. Step 5: Solve for x
    x = 4,919,608,374.30/91,855.56
  6. Step 6: Final answer
    x = 53,558.09

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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.