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Finding the Fourth Proportional to 45,000.44, 67,500.60 and 13,831.64

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Solution

The fourth proportional to 45,000.44, 67,500.60 and 13,831.64 is: 20,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.44 : 67,500.60 = 13,831.64 : x
  2. Step 2: Convert to fraction form
    45,000.44/67,500.60 = 13,831.64/x
  3. Step 3: Cross multiply
    45,000.44x = 67,500.60 × 13,831.64
  4. Step 4: Simplify right side
    45,000.44x = 933,643,998.98
  5. Step 5: Solve for x
    x = 933,643,998.98/45,000.44
  6. Step 6: Final answer
    x = 20,747.44

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Similar ratio
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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.