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Finding the Fourth Proportional to 60,261.60, 90,376.20 and 18,141.60

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Solution

The fourth proportional to 60,261.60, 90,376.20 and 18,141.60 is: 27,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,261.60 : 90,376.20 = 18,141.60 : x
  2. Step 2: Convert to fraction form
    60,261.60/90,376.20 = 18,141.60/x
  3. Step 3: Cross multiply
    60,261.60x = 90,376.20 × 18,141.60
  4. Step 4: Simplify right side
    60,261.60x = 1,639,568,869.92
  5. Step 5: Solve for x
    x = 1,639,568,869.92/60,261.60
  6. Step 6: Final answer
    x = 27,207.52

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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.