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Finding the Fourth Proportional to 40,701.60, 61,066.80 and 39,261.60

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Solution

The fourth proportional to 40,701.60, 61,066.80 and 39,261.60 is: 58,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.60 : 61,066.80 = 39,261.60 : x
  2. Step 2: Convert to fraction form
    40,701.60/61,066.80 = 39,261.60/x
  3. Step 3: Cross multiply
    40,701.60x = 61,066.80 × 39,261.60
  4. Step 4: Simplify right side
    40,701.60x = 2,397,580,274.88
  5. Step 5: Solve for x
    x = 2,397,580,274.88/40,701.60
  6. Step 6: Final answer
    x = 58,906.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.