Home / 86,747.31-119,701.67-49,021.56

Finding the Fourth Proportional to 86,747.31, 119,701.67 and 49,021.56

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Solution

The fourth proportional to 86,747.31, 119,701.67 and 49,021.56 is: 67,644.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747.31 : 119,701.67 = 49,021.56 : x
  2. Step 2: Convert to fraction form
    86,747.31/119,701.67 = 49,021.56/x
  3. Step 3: Cross multiply
    86,747.31x = 119,701.67 × 49,021.56
  4. Step 4: Simplify right side
    86,747.31x = 5,867,962,352.90
  5. Step 5: Solve for x
    x = 5,867,962,352.90/86,747.31
  6. Step 6: Final answer
    x = 67,644.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.