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Finding the Fourth Proportional to 66,888.51, 100,332.96 and 16,968.61

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Solution

The fourth proportional to 66,888.51, 100,332.96 and 16,968.61 is: 25,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.51 : 100,332.96 = 16,968.61 : x
  2. Step 2: Convert to fraction form
    66,888.51/100,332.96 = 16,968.61/x
  3. Step 3: Cross multiply
    66,888.51x = 100,332.96 × 16,968.61
  4. Step 4: Simplify right side
    66,888.51x = 1,702,510,868.39
  5. Step 5: Solve for x
    x = 1,702,510,868.39/66,888.51
  6. Step 6: Final answer
    x = 25,452.96

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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.