Home / 45,128.39-67,702.96-15,146.60

Finding the Fourth Proportional to 45,128.39, 67,702.96 and 15,146.60

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Solution

The fourth proportional to 45,128.39, 67,702.96 and 15,146.60 is: 22,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.39 : 67,702.96 = 15,146.60 : x
  2. Step 2: Convert to fraction form
    45,128.39/67,702.96 = 15,146.60/x
  3. Step 3: Cross multiply
    45,128.39x = 67,702.96 × 15,146.60
  4. Step 4: Simplify right side
    45,128.39x = 1,025,469,653.94
  5. Step 5: Solve for x
    x = 1,025,469,653.94/45,128.39
  6. Step 6: Final answer
    x = 22,723.38

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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.