Home / 45,414.18-68,022.81-21,991.50

Finding the Fourth Proportional to 45,414.18, 68,022.81 and 21,991.50

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Solution

The fourth proportional to 45,414.18, 68,022.81 and 21,991.50 is: 32,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,414.18 : 68,022.81 = 21,991.50 : x
  2. Step 2: Convert to fraction form
    45,414.18/68,022.81 = 21,991.50/x
  3. Step 3: Cross multiply
    45,414.18x = 68,022.81 × 21,991.50
  4. Step 4: Simplify right side
    45,414.18x = 1,495,923,626.12
  5. Step 5: Solve for x
    x = 1,495,923,626.12/45,414.18
  6. Step 6: Final answer
    x = 32,939.57

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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.