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Finding the Fourth Proportional to 60,435.44, 90,654.24 and 20,993.84

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Solution

The fourth proportional to 60,435.44, 90,654.24 and 20,993.84 is: 31,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,435.44 : 90,654.24 = 20,993.84 : x
  2. Step 2: Convert to fraction form
    60,435.44/90,654.24 = 20,993.84/x
  3. Step 3: Cross multiply
    60,435.44x = 90,654.24 × 20,993.84
  4. Step 4: Simplify right side
    60,435.44x = 1,903,180,609.88
  5. Step 5: Solve for x
    x = 1,903,180,609.88/60,435.44
  6. Step 6: Final answer
    x = 31,491.14

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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.