Home / 57,811.21-79,779.90-32,318.61

Finding the Fourth Proportional to 57,811.21, 79,779.90 and 32,318.61

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Solution

The fourth proportional to 57,811.21, 79,779.90 and 32,318.61 is: 44,599.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,811.21 : 79,779.90 = 32,318.61 : x
  2. Step 2: Convert to fraction form
    57,811.21/79,779.90 = 32,318.61/x
  3. Step 3: Cross multiply
    57,811.21x = 79,779.90 × 32,318.61
  4. Step 4: Simplify right side
    57,811.21x = 2,578,375,295.96
  5. Step 5: Solve for x
    x = 2,578,375,295.96/57,811.21
  6. Step 6: Final answer
    x = 44,599.92

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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.