Home / 45,287.76-67,939.80-18,629.04

Finding the Fourth Proportional to 45,287.76, 67,939.80 and 18,629.04

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Solution

The fourth proportional to 45,287.76, 67,939.80 and 18,629.04 is: 27,946.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,287.76 : 67,939.80 = 18,629.04 : x
  2. Step 2: Convert to fraction form
    45,287.76/67,939.80 = 18,629.04/x
  3. Step 3: Cross multiply
    45,287.76x = 67,939.80 × 18,629.04
  4. Step 4: Simplify right side
    45,287.76x = 1,265,653,251.79
  5. Step 5: Solve for x
    x = 1,265,653,251.79/45,287.76
  6. Step 6: Final answer
    x = 27,946.92

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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.