Home / 74,812.16-112,195.92-61,631.84

Finding the Fourth Proportional to 74,812.16, 112,195.92 and 61,631.84

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Solution

The fourth proportional to 74,812.16, 112,195.92 and 61,631.84 is: 92,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,812.16 : 112,195.92 = 61,631.84 : x
  2. Step 2: Convert to fraction form
    74,812.16/112,195.92 = 61,631.84/x
  3. Step 3: Cross multiply
    74,812.16x = 112,195.92 × 61,631.84
  4. Step 4: Simplify right side
    74,812.16x = 6,914,840,990.09
  5. Step 5: Solve for x
    x = 6,914,840,990.09/74,812.16
  6. Step 6: Final answer
    x = 92,429.37

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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.