Home / 49,729.64-68,635.23-31,823.78

Finding the Fourth Proportional to 49,729.64, 68,635.23 and 31,823.78

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Solution

The fourth proportional to 49,729.64, 68,635.23 and 31,823.78 is: 43,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,729.64 : 68,635.23 = 31,823.78 : x
  2. Step 2: Convert to fraction form
    49,729.64/68,635.23 = 31,823.78/x
  3. Step 3: Cross multiply
    49,729.64x = 68,635.23 × 31,823.78
  4. Step 4: Simplify right side
    49,729.64x = 2,184,232,459.77
  5. Step 5: Solve for x
    x = 2,184,232,459.77/49,729.64
  6. Step 6: Final answer
    x = 43,922.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.