Home / 45,124.82-67,685.79-21,449.40

Finding the Fourth Proportional to 45,124.82, 67,685.79 and 21,449.40

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Solution

The fourth proportional to 45,124.82, 67,685.79 and 21,449.40 is: 32,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,124.82 : 67,685.79 = 21,449.40 : x
  2. Step 2: Convert to fraction form
    45,124.82/67,685.79 = 21,449.40/x
  3. Step 3: Cross multiply
    45,124.82x = 67,685.79 × 21,449.40
  4. Step 4: Simplify right side
    45,124.82x = 1,451,819,584.03
  5. Step 5: Solve for x
    x = 1,451,819,584.03/45,124.82
  6. Step 6: Final answer
    x = 32,173.42

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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.