Home / 64,000.20-96,000.30-19,626.60

Finding the Fourth Proportional to 64,000.20, 96,000.30 and 19,626.60

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Solution

The fourth proportional to 64,000.20, 96,000.30 and 19,626.60 is: 29,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,000.20 : 96,000.30 = 19,626.60 : x
  2. Step 2: Convert to fraction form
    64,000.20/96,000.30 = 19,626.60/x
  3. Step 3: Cross multiply
    64,000.20x = 96,000.30 × 19,626.60
  4. Step 4: Simplify right side
    64,000.20x = 1,884,159,487.98
  5. Step 5: Solve for x
    x = 1,884,159,487.98/64,000.20
  6. Step 6: Final answer
    x = 29,439.90

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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.