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Finding the Fourth Proportional to 66,771.78, 92,145.27 and 36,557.34

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Solution

The fourth proportional to 66,771.78, 92,145.27 and 36,557.34 is: 50,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.78 : 92,145.27 = 36,557.34 : x
  2. Step 2: Convert to fraction form
    66,771.78/92,145.27 = 36,557.34/x
  3. Step 3: Cross multiply
    66,771.78x = 92,145.27 × 36,557.34
  4. Step 4: Simplify right side
    66,771.78x = 3,368,585,964.78
  5. Step 5: Solve for x
    x = 3,368,585,964.78/66,771.78
  6. Step 6: Final answer
    x = 50,449.25

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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.