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Finding the Fourth Proportional to 48,528.20, 72,734.70 and 20,448.20

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Solution

The fourth proportional to 48,528.20, 72,734.70 and 20,448.20 is: 30,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,528.20 : 72,734.70 = 20,448.20 : x
  2. Step 2: Convert to fraction form
    48,528.20/72,734.70 = 20,448.20/x
  3. Step 3: Cross multiply
    48,528.20x = 72,734.70 × 20,448.20
  4. Step 4: Simplify right side
    48,528.20x = 1,487,293,692.54
  5. Step 5: Solve for x
    x = 1,487,293,692.54/48,528.20
  6. Step 6: Final answer
    x = 30,648.03

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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.