Home / 90,234.54-135,274.05-43,520.22

Finding the Fourth Proportional to 90,234.54, 135,274.05 and 43,520.22

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Solution

The fourth proportional to 90,234.54, 135,274.05 and 43,520.22 is: 65,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,234.54 : 135,274.05 = 43,520.22 : x
  2. Step 2: Convert to fraction form
    90,234.54/135,274.05 = 43,520.22/x
  3. Step 3: Cross multiply
    90,234.54x = 135,274.05 × 43,520.22
  4. Step 4: Simplify right side
    90,234.54x = 5,887,156,416.29
  5. Step 5: Solve for x
    x = 5,887,156,416.29/90,234.54
  6. Step 6: Final answer
    x = 65,242.83

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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.