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Finding the Fourth Proportional to 73,487.40, 110,230.38 and 20,889.96

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Solution

The fourth proportional to 73,487.40, 110,230.38 and 20,889.96 is: 31,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,487.40 : 110,230.38 = 20,889.96 : x
  2. Step 2: Convert to fraction form
    73,487.40/110,230.38 = 20,889.96/x
  3. Step 3: Cross multiply
    73,487.40x = 110,230.38 × 20,889.96
  4. Step 4: Simplify right side
    73,487.40x = 2,302,708,228.98
  5. Step 5: Solve for x
    x = 2,302,708,228.98/73,487.40
  6. Step 6: Final answer
    x = 31,334.74

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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.