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Finding the Fourth Proportional to 66,940.12, 92,376.50 and 38,259.52

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Solution

The fourth proportional to 66,940.12, 92,376.50 and 38,259.52 is: 52,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.12 : 92,376.50 = 38,259.52 : x
  2. Step 2: Convert to fraction form
    66,940.12/92,376.50 = 38,259.52/x
  3. Step 3: Cross multiply
    66,940.12x = 92,376.50 × 38,259.52
  4. Step 4: Simplify right side
    66,940.12x = 3,534,280,549.28
  5. Step 5: Solve for x
    x = 3,534,280,549.28/66,940.12
  6. Step 6: Final answer
    x = 52,797.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.