Home / 57,281.96-79,049.60-31,790.05

Finding the Fourth Proportional to 57,281.96, 79,049.60 and 31,790.05

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Solution

The fourth proportional to 57,281.96, 79,049.60 and 31,790.05 is: 43,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.96 : 79,049.60 = 31,790.05 : x
  2. Step 2: Convert to fraction form
    57,281.96/79,049.60 = 31,790.05/x
  3. Step 3: Cross multiply
    57,281.96x = 79,049.60 × 31,790.05
  4. Step 4: Simplify right side
    57,281.96x = 2,512,990,736.48
  5. Step 5: Solve for x
    x = 2,512,990,736.48/57,281.96
  6. Step 6: Final answer
    x = 43,870.54

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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.