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Finding the Fourth Proportional to 48,205.80, 72,308.70 and 47,221.65

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Solution

The fourth proportional to 48,205.80, 72,308.70 and 47,221.65 is: 70,832.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,205.80 : 72,308.70 = 47,221.65 : x
  2. Step 2: Convert to fraction form
    48,205.80/72,308.70 = 47,221.65/x
  3. Step 3: Cross multiply
    48,205.80x = 72,308.70 × 47,221.65
  4. Step 4: Simplify right side
    48,205.80x = 3,414,536,123.36
  5. Step 5: Solve for x
    x = 3,414,536,123.36/48,205.80
  6. Step 6: Final answer
    x = 70,832.48

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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.