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Finding the Fourth Proportional to 66,766.29, 92,141.91 and 38,473.80

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Solution

The fourth proportional to 66,766.29, 92,141.91 and 38,473.80 is: 53,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,766.29 : 92,141.91 = 38,473.80 : x
  2. Step 2: Convert to fraction form
    66,766.29/92,141.91 = 38,473.80/x
  3. Step 3: Cross multiply
    66,766.29x = 92,141.91 × 38,473.80
  4. Step 4: Simplify right side
    66,766.29x = 3,545,049,416.96
  5. Step 5: Solve for x
    x = 3,545,049,416.96/66,766.29
  6. Step 6: Final answer
    x = 53,096.40

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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.