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Finding the Fourth Proportional to 66,809.27, 92,208.68 and 39,954.74

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Solution

The fourth proportional to 66,809.27, 92,208.68 and 39,954.74 is: 55,144.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,809.27 : 92,208.68 = 39,954.74 : x
  2. Step 2: Convert to fraction form
    66,809.27/92,208.68 = 39,954.74/x
  3. Step 3: Cross multiply
    66,809.27x = 92,208.68 × 39,954.74
  4. Step 4: Simplify right side
    66,809.27x = 3,684,173,324.16
  5. Step 5: Solve for x
    x = 3,684,173,324.16/66,809.27
  6. Step 6: Final answer
    x = 55,144.64

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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.