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Finding the Fourth Proportional to 66,649.13, 91,975.80 and 36,841.13

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Solution

The fourth proportional to 66,649.13, 91,975.80 and 36,841.13 is: 50,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,649.13 : 91,975.80 = 36,841.13 : x
  2. Step 2: Convert to fraction form
    66,649.13/91,975.80 = 36,841.13/x
  3. Step 3: Cross multiply
    66,649.13x = 91,975.80 × 36,841.13
  4. Step 4: Simplify right side
    66,649.13x = 3,388,491,944.78
  5. Step 5: Solve for x
    x = 3,388,491,944.78/66,649.13
  6. Step 6: Final answer
    x = 50,840.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.