Home / 74,942.84-112,381.29-39,874.16

Finding the Fourth Proportional to 74,942.84, 112,381.29 and 39,874.16

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Solution

The fourth proportional to 74,942.84, 112,381.29 and 39,874.16 is: 59,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,942.84 : 112,381.29 = 39,874.16 : x
  2. Step 2: Convert to fraction form
    74,942.84/112,381.29 = 39,874.16/x
  3. Step 3: Cross multiply
    74,942.84x = 112,381.29 × 39,874.16
  4. Step 4: Simplify right side
    74,942.84x = 4,481,109,538.47
  5. Step 5: Solve for x
    x = 4,481,109,538.47/74,942.84
  6. Step 6: Final answer
    x = 59,793.70

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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.