Home / 90,238.50-135,324.27-40,269.06

Finding the Fourth Proportional to 90,238.50, 135,324.27 and 40,269.06

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Solution

The fourth proportional to 90,238.50, 135,324.27 and 40,269.06 is: 60,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,238.50 : 135,324.27 = 40,269.06 : x
  2. Step 2: Convert to fraction form
    90,238.50/135,324.27 = 40,269.06/x
  3. Step 3: Cross multiply
    90,238.50x = 135,324.27 × 40,269.06
  4. Step 4: Simplify right side
    90,238.50x = 5,449,381,148.09
  5. Step 5: Solve for x
    x = 5,449,381,148.09/90,238.50
  6. Step 6: Final answer
    x = 60,388.65

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1.5x scale

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.