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Finding the Fourth Proportional to 66,922.53, 100,347.13 and 30,859.84

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Solution

The fourth proportional to 66,922.53, 100,347.13 and 30,859.84 is: 46,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,922.53 : 100,347.13 = 30,859.84 : x
  2. Step 2: Convert to fraction form
    66,922.53/100,347.13 = 30,859.84/x
  3. Step 3: Cross multiply
    66,922.53x = 100,347.13 × 30,859.84
  4. Step 4: Simplify right side
    66,922.53x = 3,096,696,376.26
  5. Step 5: Solve for x
    x = 3,096,696,376.26/66,922.53
  6. Step 6: Final answer
    x = 46,272.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.