Home / 69,211.13-103,735.70-31,774.82

Finding the Fourth Proportional to 69,211.13, 103,735.70 and 31,774.82

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Solution

The fourth proportional to 69,211.13, 103,735.70 and 31,774.82 is: 47,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,211.13 : 103,735.70 = 31,774.82 : x
  2. Step 2: Convert to fraction form
    69,211.13/103,735.70 = 31,774.82/x
  3. Step 3: Cross multiply
    69,211.13x = 103,735.70 × 31,774.82
  4. Step 4: Simplify right side
    69,211.13x = 3,296,183,195.07
  5. Step 5: Solve for x
    x = 3,296,183,195.07/69,211.13
  6. Step 6: Final answer
    x = 47,625.05

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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.