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Finding the Fourth Proportional to 66,991.42, 92,442.32 and 36,776.62

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Solution

The fourth proportional to 66,991.42, 92,442.32 and 36,776.62 is: 50,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,991.42 : 92,442.32 = 36,776.62 : x
  2. Step 2: Convert to fraction form
    66,991.42/92,442.32 = 36,776.62/x
  3. Step 3: Cross multiply
    66,991.42x = 92,442.32 × 36,776.62
  4. Step 4: Simplify right side
    66,991.42x = 3,399,715,612.35
  5. Step 5: Solve for x
    x = 3,399,715,612.35/66,991.42
  6. Step 6: Final answer
    x = 50,748.53

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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.