Home / 45,046.96-67,468.92-21,690.88

Finding the Fourth Proportional to 45,046.96, 67,468.92 and 21,690.88

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Solution

The fourth proportional to 45,046.96, 67,468.92 and 21,690.88 is: 32,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,046.96 : 67,468.92 = 21,690.88 : x
  2. Step 2: Convert to fraction form
    45,046.96/67,468.92 = 21,690.88/x
  3. Step 3: Cross multiply
    45,046.96x = 67,468.92 × 21,690.88
  4. Step 4: Simplify right side
    45,046.96x = 1,463,460,247.45
  5. Step 5: Solve for x
    x = 1,463,460,247.45/45,046.96
  6. Step 6: Final answer
    x = 32,487.44

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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.