Home / 48,913.78-73,370.70-11,977.78

Finding the Fourth Proportional to 48,913.78, 73,370.70 and 11,977.78

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Solution

The fourth proportional to 48,913.78, 73,370.70 and 11,977.78 is: 17,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,913.78 : 73,370.70 = 11,977.78 : x
  2. Step 2: Convert to fraction form
    48,913.78/73,370.70 = 11,977.78/x
  3. Step 3: Cross multiply
    48,913.78x = 73,370.70 × 11,977.78
  4. Step 4: Simplify right side
    48,913.78x = 878,818,103.05
  5. Step 5: Solve for x
    x = 878,818,103.05/48,913.78
  6. Step 6: Final answer
    x = 17,966.68

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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.