Home / 66,389.11-91,615.82-36,174.67

Finding the Fourth Proportional to 66,389.11, 91,615.82 and 36,174.67

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Solution

The fourth proportional to 66,389.11, 91,615.82 and 36,174.67 is: 49,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.11 : 91,615.82 = 36,174.67 : x
  2. Step 2: Convert to fraction form
    66,389.11/91,615.82 = 36,174.67/x
  3. Step 3: Cross multiply
    66,389.11x = 91,615.82 × 36,174.67
  4. Step 4: Simplify right side
    66,389.11x = 3,314,171,645.37
  5. Step 5: Solve for x
    x = 3,314,171,645.37/66,389.11
  6. Step 6: Final answer
    x = 49,920.41

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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.