Home / 66,891.20-92,319.21-41,405.67

Finding the Fourth Proportional to 66,891.20, 92,319.21 and 41,405.67

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Solution

The fourth proportional to 66,891.20, 92,319.21 and 41,405.67 is: 57,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.20 : 92,319.21 = 41,405.67 : x
  2. Step 2: Convert to fraction form
    66,891.20/92,319.21 = 41,405.67/x
  3. Step 3: Cross multiply
    66,891.20x = 92,319.21 × 41,405.67
  4. Step 4: Simplify right side
    66,891.20x = 3,822,538,743.92
  5. Step 5: Solve for x
    x = 3,822,538,743.92/66,891.20
  6. Step 6: Final answer
    x = 57,145.62

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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.