Home / 49,512.78-74,091.75-42,872.19

Finding the Fourth Proportional to 49,512.78, 74,091.75 and 42,872.19

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Solution

The fourth proportional to 49,512.78, 74,091.75 and 42,872.19 is: 64,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,512.78 : 74,091.75 = 42,872.19 : x
  2. Step 2: Convert to fraction form
    49,512.78/74,091.75 = 42,872.19/x
  3. Step 3: Cross multiply
    49,512.78x = 74,091.75 × 42,872.19
  4. Step 4: Simplify right side
    49,512.78x = 3,176,475,583.43
  5. Step 5: Solve for x
    x = 3,176,475,583.43/49,512.78
  6. Step 6: Final answer
    x = 64,154.66

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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.