Home / 65,166.21-89,917.56-38,309.85

Finding the Fourth Proportional to 65,166.21, 89,917.56 and 38,309.85

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Solution

The fourth proportional to 65,166.21, 89,917.56 and 38,309.85 is: 52,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,166.21 : 89,917.56 = 38,309.85 : x
  2. Step 2: Convert to fraction form
    65,166.21/89,917.56 = 38,309.85/x
  3. Step 3: Cross multiply
    65,166.21x = 89,917.56 × 38,309.85
  4. Step 4: Simplify right side
    65,166.21x = 3,444,728,235.97
  5. Step 5: Solve for x
    x = 3,444,728,235.97/65,166.21
  6. Step 6: Final answer
    x = 52,860.65

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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.