Home / 45,086.41-67,635.76-18,785

Finding the Fourth Proportional to 45,086.41, 67,635.76 and 18,785

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Solution

The fourth proportional to 45,086.41, 67,635.76 and 18,785 is: 28,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.41 : 67,635.76 = 18,785 : x
  2. Step 2: Convert to fraction form
    45,086.41/67,635.76 = 18,785/x
  3. Step 3: Cross multiply
    45,086.41x = 67,635.76 × 18,785
  4. Step 4: Simplify right side
    45,086.41x = 1,270,537,751.60
  5. Step 5: Solve for x
    x = 1,270,537,751.60/45,086.41
  6. Step 6: Final answer
    x = 28,180.06

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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.