Home / 73,591.22-110,405.46-21,000.90

Finding the Fourth Proportional to 73,591.22, 110,405.46 and 21,000.90

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Solution

The fourth proportional to 73,591.22, 110,405.46 and 21,000.90 is: 31,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,591.22 : 110,405.46 = 21,000.90 : x
  2. Step 2: Convert to fraction form
    73,591.22/110,405.46 = 21,000.90/x
  3. Step 3: Cross multiply
    73,591.22x = 110,405.46 × 21,000.90
  4. Step 4: Simplify right side
    73,591.22x = 2,318,614,024.91
  5. Step 5: Solve for x
    x = 2,318,614,024.91/73,591.22
  6. Step 6: Final answer
    x = 31,506.67

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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.