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Finding the Fourth Proportional to 66,246.69, 99,367.69 and 18,862.01

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Solution

The fourth proportional to 66,246.69, 99,367.69 and 18,862.01 is: 28,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.69 : 99,367.69 = 18,862.01 : x
  2. Step 2: Convert to fraction form
    66,246.69/99,367.69 = 18,862.01/x
  3. Step 3: Cross multiply
    66,246.69x = 99,367.69 × 18,862.01
  4. Step 4: Simplify right side
    66,246.69x = 1,874,274,732.35
  5. Step 5: Solve for x
    x = 1,874,274,732.35/66,246.69
  6. Step 6: Final answer
    x = 28,292.35

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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.