Home / 51,267.40-76,901.10-31,481.80

Finding the Fourth Proportional to 51,267.40, 76,901.10 and 31,481.80

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Solution

The fourth proportional to 51,267.40, 76,901.10 and 31,481.80 is: 47,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,267.40 : 76,901.10 = 31,481.80 : x
  2. Step 2: Convert to fraction form
    51,267.40/76,901.10 = 31,481.80/x
  3. Step 3: Cross multiply
    51,267.40x = 76,901.10 × 31,481.80
  4. Step 4: Simplify right side
    51,267.40x = 2,420,985,049.98
  5. Step 5: Solve for x
    x = 2,420,985,049.98/51,267.40
  6. Step 6: Final answer
    x = 47,222.70

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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.