Home / 51,379.84-76,875.97-30,331.33

Finding the Fourth Proportional to 51,379.84, 76,875.97 and 30,331.33

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Solution

The fourth proportional to 51,379.84, 76,875.97 and 30,331.33 is: 45,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.84 : 76,875.97 = 30,331.33 : x
  2. Step 2: Convert to fraction form
    51,379.84/76,875.97 = 30,331.33/x
  3. Step 3: Cross multiply
    51,379.84x = 76,875.97 × 30,331.33
  4. Step 4: Simplify right side
    51,379.84x = 2,331,750,406.97
  5. Step 5: Solve for x
    x = 2,331,750,406.97/51,379.84
  6. Step 6: Final answer
    x = 45,382.59

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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.