Home / 48,621.78-72,815.10-40,240.10

Finding the Fourth Proportional to 48,621.78, 72,815.10 and 40,240.10

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Solution

The fourth proportional to 48,621.78, 72,815.10 and 40,240.10 is: 60,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,621.78 : 72,815.10 = 40,240.10 : x
  2. Step 2: Convert to fraction form
    48,621.78/72,815.10 = 40,240.10/x
  3. Step 3: Cross multiply
    48,621.78x = 72,815.10 × 40,240.10
  4. Step 4: Simplify right side
    48,621.78x = 2,930,086,541.43
  5. Step 5: Solve for x
    x = 2,930,086,541.43/48,621.78
  6. Step 6: Final answer
    x = 60,262.84

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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.