Home / 50,660.10-75,990.21-13,220.15

Finding the Fourth Proportional to 50,660.10, 75,990.21 and 13,220.15

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Solution

The fourth proportional to 50,660.10, 75,990.21 and 13,220.15 is: 19,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,660.10 : 75,990.21 = 13,220.15 : x
  2. Step 2: Convert to fraction form
    50,660.10/75,990.21 = 13,220.15/x
  3. Step 3: Cross multiply
    50,660.10x = 75,990.21 × 13,220.15
  4. Step 4: Simplify right side
    50,660.10x = 1,004,601,594.78
  5. Step 5: Solve for x
    x = 1,004,601,594.78/50,660.10
  6. Step 6: Final answer
    x = 19,830.23

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Double scale
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Similar ratio
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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.