Home / 90,242.36-135,336.19-37,639.54

Finding the Fourth Proportional to 90,242.36, 135,336.19 and 37,639.54

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Solution

The fourth proportional to 90,242.36, 135,336.19 and 37,639.54 is: 56,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,242.36 : 135,336.19 = 37,639.54 : x
  2. Step 2: Convert to fraction form
    90,242.36/135,336.19 = 37,639.54/x
  3. Step 3: Cross multiply
    90,242.36x = 135,336.19 × 37,639.54
  4. Step 4: Simplify right side
    90,242.36x = 5,093,991,936.95
  5. Step 5: Solve for x
    x = 5,093,991,936.95/90,242.36
  6. Step 6: Final answer
    x = 56,447.90

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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.