Home / 48,638.80-72,958.20-47,982.70

Finding the Fourth Proportional to 48,638.80, 72,958.20 and 47,982.70

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Solution

The fourth proportional to 48,638.80, 72,958.20 and 47,982.70 is: 71,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,638.80 : 72,958.20 = 47,982.70 : x
  2. Step 2: Convert to fraction form
    48,638.80/72,958.20 = 47,982.70/x
  3. Step 3: Cross multiply
    48,638.80x = 72,958.20 × 47,982.70
  4. Step 4: Simplify right side
    48,638.80x = 3,500,731,423.14
  5. Step 5: Solve for x
    x = 3,500,731,423.14/48,638.80
  6. Step 6: Final answer
    x = 71,974.05

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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.