Home / 74,581.67-111,872.51-61,406.37

Finding the Fourth Proportional to 74,581.67, 111,872.51 and 61,406.37

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Solution

The fourth proportional to 74,581.67, 111,872.51 and 61,406.37 is: 92,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.67 : 111,872.51 = 61,406.37 : x
  2. Step 2: Convert to fraction form
    74,581.67/111,872.51 = 61,406.37/x
  3. Step 3: Cross multiply
    74,581.67x = 111,872.51 × 61,406.37
  4. Step 4: Simplify right side
    74,581.67x = 6,869,684,741.89
  5. Step 5: Solve for x
    x = 6,869,684,741.89/74,581.67
  6. Step 6: Final answer
    x = 92,109.56

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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.