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Finding the Fourth Proportional to 68,340.22, 94,311.84 and 39,657.67

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Solution

The fourth proportional to 68,340.22, 94,311.84 and 39,657.67 is: 54,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,340.22 : 94,311.84 = 39,657.67 : x
  2. Step 2: Convert to fraction form
    68,340.22/94,311.84 = 39,657.67/x
  3. Step 3: Cross multiply
    68,340.22x = 94,311.84 × 39,657.67
  4. Step 4: Simplify right side
    68,340.22x = 3,740,187,827.81
  5. Step 5: Solve for x
    x = 3,740,187,827.81/68,340.22
  6. Step 6: Final answer
    x = 54,728.94

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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.