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Finding the Fourth Proportional to 60,169.60, 90,268.23 and 20,193.88

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Solution

The fourth proportional to 60,169.60, 90,268.23 and 20,193.88 is: 30,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,169.60 : 90,268.23 = 20,193.88 : x
  2. Step 2: Convert to fraction form
    60,169.60/90,268.23 = 20,193.88/x
  3. Step 3: Cross multiply
    60,169.60x = 90,268.23 × 20,193.88
  4. Step 4: Simplify right side
    60,169.60x = 1,822,865,804.43
  5. Step 5: Solve for x
    x = 1,822,865,804.43/60,169.60
  6. Step 6: Final answer
    x = 30,295.46

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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.