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Finding the Fourth Proportional to 45,399.60, 68,100.60 and 14,235.60

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Solution

The fourth proportional to 45,399.60, 68,100.60 and 14,235.60 is: 21,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,399.60 : 68,100.60 = 14,235.60 : x
  2. Step 2: Convert to fraction form
    45,399.60/68,100.60 = 14,235.60/x
  3. Step 3: Cross multiply
    45,399.60x = 68,100.60 × 14,235.60
  4. Step 4: Simplify right side
    45,399.60x = 969,452,901.36
  5. Step 5: Solve for x
    x = 969,452,901.36/45,399.60
  6. Step 6: Final answer
    x = 21,353.78

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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.