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Finding the Fourth Proportional to 66,773, 100,081.68 and 37,176.68

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Solution

The fourth proportional to 66,773, 100,081.68 and 37,176.68 is: 55,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,773 : 100,081.68 = 37,176.68 : x
  2. Step 2: Convert to fraction form
    66,773/100,081.68 = 37,176.68/x
  3. Step 3: Cross multiply
    66,773x = 100,081.68 × 37,176.68
  4. Step 4: Simplify right side
    66,773x = 3,720,704,591.22
  5. Step 5: Solve for x
    x = 3,720,704,591.22/66,773
  6. Step 6: Final answer
    x = 55,721.69

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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.