Home / 45,136.54-67,713.27-20,177.58

Finding the Fourth Proportional to 45,136.54, 67,713.27 and 20,177.58

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Solution

The fourth proportional to 45,136.54, 67,713.27 and 20,177.58 is: 30,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.54 : 67,713.27 = 20,177.58 : x
  2. Step 2: Convert to fraction form
    45,136.54/67,713.27 = 20,177.58/x
  3. Step 3: Cross multiply
    45,136.54x = 67,713.27 × 20,177.58
  4. Step 4: Simplify right side
    45,136.54x = 1,366,289,922.49
  5. Step 5: Solve for x
    x = 1,366,289,922.49/45,136.54
  6. Step 6: Final answer
    x = 30,270.15

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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.