Home / 42,732.44-64,121.60-17,789.70

Finding the Fourth Proportional to 42,732.44, 64,121.60 and 17,789.70

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Solution

The fourth proportional to 42,732.44, 64,121.60 and 17,789.70 is: 26,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,732.44 : 64,121.60 = 17,789.70 : x
  2. Step 2: Convert to fraction form
    42,732.44/64,121.60 = 17,789.70/x
  3. Step 3: Cross multiply
    42,732.44x = 64,121.60 × 17,789.70
  4. Step 4: Simplify right side
    42,732.44x = 1,140,704,071.99
  5. Step 5: Solve for x
    x = 1,140,704,071.99/42,732.44
  6. Step 6: Final answer
    x = 26,694.10

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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.