Home / 74,678.72-112,145.92-49,878.14

Finding the Fourth Proportional to 74,678.72, 112,145.92 and 49,878.14

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Solution

The fourth proportional to 74,678.72, 112,145.92 and 49,878.14 is: 74,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,678.72 : 112,145.92 = 49,878.14 : x
  2. Step 2: Convert to fraction form
    74,678.72/112,145.92 = 49,878.14/x
  3. Step 3: Cross multiply
    74,678.72x = 112,145.92 × 49,878.14
  4. Step 4: Simplify right side
    74,678.72x = 5,593,629,212.76
  5. Step 5: Solve for x
    x = 5,593,629,212.76/74,678.72
  6. Step 6: Final answer
    x = 74,902.59

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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.