Home / 48,212.30-72,318.45-20,506.70

Finding the Fourth Proportional to 48,212.30, 72,318.45 and 20,506.70

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Solution

The fourth proportional to 48,212.30, 72,318.45 and 20,506.70 is: 30,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,212.30 : 72,318.45 = 20,506.70 : x
  2. Step 2: Convert to fraction form
    48,212.30/72,318.45 = 20,506.70/x
  3. Step 3: Cross multiply
    48,212.30x = 72,318.45 × 20,506.70
  4. Step 4: Simplify right side
    48,212.30x = 1,483,012,758.62
  5. Step 5: Solve for x
    x = 1,483,012,758.62/48,212.30
  6. Step 6: Final answer
    x = 30,760.05

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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.