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Finding the Fourth Proportional to 57,674.40, 86,550.75 and 20,234.16

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Solution

The fourth proportional to 57,674.40, 86,550.75 and 20,234.16 is: 30,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,674.40 : 86,550.75 = 20,234.16 : x
  2. Step 2: Convert to fraction form
    57,674.40/86,550.75 = 20,234.16/x
  3. Step 3: Cross multiply
    57,674.40x = 86,550.75 × 20,234.16
  4. Step 4: Simplify right side
    57,674.40x = 1,751,281,723.62
  5. Step 5: Solve for x
    x = 1,751,281,723.62/57,674.40
  6. Step 6: Final answer
    x = 30,364.98

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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.