Home / 45,512.87-68,261.99-19,214.20

Finding the Fourth Proportional to 45,512.87, 68,261.99 and 19,214.20

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Solution

The fourth proportional to 45,512.87, 68,261.99 and 19,214.20 is: 28,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,512.87 : 68,261.99 = 19,214.20 : x
  2. Step 2: Convert to fraction form
    45,512.87/68,261.99 = 19,214.20/x
  3. Step 3: Cross multiply
    45,512.87x = 68,261.99 × 19,214.20
  4. Step 4: Simplify right side
    45,512.87x = 1,311,599,241.62
  5. Step 5: Solve for x
    x = 1,311,599,241.62/45,512.87
  6. Step 6: Final answer
    x = 28,818.21

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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.