Home / 48,621.42-72,883.68-20,548.54

Finding the Fourth Proportional to 48,621.42, 72,883.68 and 20,548.54

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Solution

The fourth proportional to 48,621.42, 72,883.68 and 20,548.54 is: 30,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621.42 : 72,883.68 = 20,548.54 : x
  2. Step 2: Convert to fraction form
    48,621.42/72,883.68 = 20,548.54/x
  3. Step 3: Cross multiply
    48,621.42x = 72,883.68 × 20,548.54
  4. Step 4: Simplify right side
    48,621.42x = 1,497,653,213.83
  5. Step 5: Solve for x
    x = 1,497,653,213.83/48,621.42
  6. Step 6: Final answer
    x = 30,802.33

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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.