Home / 45,086.31-67,681.88-26,379.78

Finding the Fourth Proportional to 45,086.31, 67,681.88 and 26,379.78

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Solution

The fourth proportional to 45,086.31, 67,681.88 and 26,379.78 is: 39,600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.31 : 67,681.88 = 26,379.78 : x
  2. Step 2: Convert to fraction form
    45,086.31/67,681.88 = 26,379.78/x
  3. Step 3: Cross multiply
    45,086.31x = 67,681.88 × 26,379.78
  4. Step 4: Simplify right side
    45,086.31x = 1,785,432,942.81
  5. Step 5: Solve for x
    x = 1,785,432,942.81/45,086.31
  6. Step 6: Final answer
    x = 39,600.33

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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.