Home / 84,619.67-126,937.94-31,325.90

Finding the Fourth Proportional to 84,619.67, 126,937.94 and 31,325.90

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Solution

The fourth proportional to 84,619.67, 126,937.94 and 31,325.90 is: 46,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.67 : 126,937.94 = 31,325.90 : x
  2. Step 2: Convert to fraction form
    84,619.67/126,937.94 = 31,325.90/x
  3. Step 3: Cross multiply
    84,619.67x = 126,937.94 × 31,325.90
  4. Step 4: Simplify right side
    84,619.67x = 3,976,444,423.33
  5. Step 5: Solve for x
    x = 3,976,444,423.33/84,619.67
  6. Step 6: Final answer
    x = 46,991.97

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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.