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Finding the Fourth Proportional to 66,761.87, 92,131.53 and 36,549.07

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Solution

The fourth proportional to 66,761.87, 92,131.53 and 36,549.07 is: 50,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,761.87 : 92,131.53 = 36,549.07 : x
  2. Step 2: Convert to fraction form
    66,761.87/92,131.53 = 36,549.07/x
  3. Step 3: Cross multiply
    66,761.87x = 92,131.53 × 36,549.07
  4. Step 4: Simplify right side
    66,761.87x = 3,367,321,739.18
  5. Step 5: Solve for x
    x = 3,367,321,739.18/66,761.87
  6. Step 6: Final answer
    x = 50,437.80

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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.