Home / 45,198.30-67,785.30-18,897.60

Finding the Fourth Proportional to 45,198.30, 67,785.30 and 18,897.60

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Solution

The fourth proportional to 45,198.30, 67,785.30 and 18,897.60 is: 28,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,198.30 : 67,785.30 = 18,897.60 : x
  2. Step 2: Convert to fraction form
    45,198.30/67,785.30 = 18,897.60/x
  3. Step 3: Cross multiply
    45,198.30x = 67,785.30 × 18,897.60
  4. Step 4: Simplify right side
    45,198.30x = 1,280,979,485.28
  5. Step 5: Solve for x
    x = 1,280,979,485.28/45,198.30
  6. Step 6: Final answer
    x = 28,341.32

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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.