Home / 51,000.20-76,500.30-27,672.20

Finding the Fourth Proportional to 51,000.20, 76,500.30 and 27,672.20

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Solution

The fourth proportional to 51,000.20, 76,500.30 and 27,672.20 is: 41,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,000.20 : 76,500.30 = 27,672.20 : x
  2. Step 2: Convert to fraction form
    51,000.20/76,500.30 = 27,672.20/x
  3. Step 3: Cross multiply
    51,000.20x = 76,500.30 × 27,672.20
  4. Step 4: Simplify right side
    51,000.20x = 2,116,931,601.66
  5. Step 5: Solve for x
    x = 2,116,931,601.66/51,000.20
  6. Step 6: Final answer
    x = 41,508.30

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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.