Home / 48,011.20-72,049.20-28,268.80

Finding the Fourth Proportional to 48,011.20, 72,049.20 and 28,268.80

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Solution

The fourth proportional to 48,011.20, 72,049.20 and 28,268.80 is: 42,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,011.20 : 72,049.20 = 28,268.80 : x
  2. Step 2: Convert to fraction form
    48,011.20/72,049.20 = 28,268.80/x
  3. Step 3: Cross multiply
    48,011.20x = 72,049.20 × 28,268.80
  4. Step 4: Simplify right side
    48,011.20x = 2,036,744,424.96
  5. Step 5: Solve for x
    x = 2,036,744,424.96/48,011.20
  6. Step 6: Final answer
    x = 42,422.28

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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.