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Finding the Fourth Proportional to 66,468.96, 91,741.44 and 38,190.24

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Solution

The fourth proportional to 66,468.96, 91,741.44 and 38,190.24 is: 52,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468.96 : 91,741.44 = 38,190.24 : x
  2. Step 2: Convert to fraction form
    66,468.96/91,741.44 = 38,190.24/x
  3. Step 3: Cross multiply
    66,468.96x = 91,741.44 × 38,190.24
  4. Step 4: Simplify right side
    66,468.96x = 3,503,627,611.55
  5. Step 5: Solve for x
    x = 3,503,627,611.55/66,468.96
  6. Step 6: Final answer
    x = 52,710.73

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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.