Home / 90,273.85-135,399.83-45,932.43

Finding the Fourth Proportional to 90,273.85, 135,399.83 and 45,932.43

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Solution

The fourth proportional to 90,273.85, 135,399.83 and 45,932.43 is: 68,893.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,273.85 : 135,399.83 = 45,932.43 : x
  2. Step 2: Convert to fraction form
    90,273.85/135,399.83 = 45,932.43/x
  3. Step 3: Cross multiply
    90,273.85x = 135,399.83 × 45,932.43
  4. Step 4: Simplify right side
    90,273.85x = 6,219,243,213.49
  5. Step 5: Solve for x
    x = 6,219,243,213.49/90,273.85
  6. Step 6: Final answer
    x = 68,893.08

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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.