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Finding the Fourth Proportional to 66,652.44, 99,978.65 and 26,689.41

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Solution

The fourth proportional to 66,652.44, 99,978.65 and 26,689.41 is: 40,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,652.44 : 99,978.65 = 26,689.41 : x
  2. Step 2: Convert to fraction form
    66,652.44/99,978.65 = 26,689.41/x
  3. Step 3: Cross multiply
    66,652.44x = 99,978.65 × 26,689.41
  4. Step 4: Simplify right side
    66,652.44x = 2,668,371,047.65
  5. Step 5: Solve for x
    x = 2,668,371,047.65/66,652.44
  6. Step 6: Final answer
    x = 40,034.11

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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.