Home / 45,286.12-67,930.80-14,123.80

Finding the Fourth Proportional to 45,286.12, 67,930.80 and 14,123.80

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Solution

The fourth proportional to 45,286.12, 67,930.80 and 14,123.80 is: 21,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,286.12 : 67,930.80 = 14,123.80 : x
  2. Step 2: Convert to fraction form
    45,286.12/67,930.80 = 14,123.80/x
  3. Step 3: Cross multiply
    45,286.12x = 67,930.80 × 14,123.80
  4. Step 4: Simplify right side
    45,286.12x = 959,441,033.04
  5. Step 5: Solve for x
    x = 959,441,033.04/45,286.12
  6. Step 6: Final answer
    x = 21,186.21

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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.