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Finding the Fourth Proportional to 66,681, 92,022.20 and 36,464.56

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Solution

The fourth proportional to 66,681, 92,022.20 and 36,464.56 is: 50,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681 : 92,022.20 = 36,464.56 : x
  2. Step 2: Convert to fraction form
    66,681/92,022.20 = 36,464.56/x
  3. Step 3: Cross multiply
    66,681x = 92,022.20 × 36,464.56
  4. Step 4: Simplify right side
    66,681x = 3,355,549,033.23
  5. Step 5: Solve for x
    x = 3,355,549,033.23/66,681
  6. Step 6: Final answer
    x = 50,322.42

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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.