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Finding the Fourth Proportional to 67,662.91, 101,466.61 and 20,261.30

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Solution

The fourth proportional to 67,662.91, 101,466.61 and 20,261.30 is: 30,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,662.91 : 101,466.61 = 20,261.30 : x
  2. Step 2: Convert to fraction form
    67,662.91/101,466.61 = 20,261.30/x
  3. Step 3: Cross multiply
    67,662.91x = 101,466.61 × 20,261.30
  4. Step 4: Simplify right side
    67,662.91x = 2,055,845,425.19
  5. Step 5: Solve for x
    x = 2,055,845,425.19/67,662.91
  6. Step 6: Final answer
    x = 30,383.64

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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.