Home / 74,143.53-111,231.71-40,846.46

Finding the Fourth Proportional to 74,143.53, 111,231.71 and 40,846.46

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Solution

The fourth proportional to 74,143.53, 111,231.71 and 40,846.46 is: 61,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.53 : 111,231.71 = 40,846.46 : x
  2. Step 2: Convert to fraction form
    74,143.53/111,231.71 = 40,846.46/x
  3. Step 3: Cross multiply
    74,143.53x = 111,231.71 × 40,846.46
  4. Step 4: Simplify right side
    74,143.53x = 4,543,420,832.86
  5. Step 5: Solve for x
    x = 4,543,420,832.86/74,143.53
  6. Step 6: Final answer
    x = 61,278.72

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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.