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Finding the Fourth Proportional to 67,652.28, 101,466.54 and 20,905.56

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Solution

The fourth proportional to 67,652.28, 101,466.54 and 20,905.56 is: 31,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,652.28 : 101,466.54 = 20,905.56 : x
  2. Step 2: Convert to fraction form
    67,652.28/101,466.54 = 20,905.56/x
  3. Step 3: Cross multiply
    67,652.28x = 101,466.54 × 20,905.56
  4. Step 4: Simplify right side
    67,652.28x = 2,121,214,839.96
  5. Step 5: Solve for x
    x = 2,121,214,839.96/67,652.28
  6. Step 6: Final answer
    x = 31,354.67

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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.