Home / 57,789.20-79,749.09-31,293.20

Finding the Fourth Proportional to 57,789.20, 79,749.09 and 31,293.20

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Solution

The fourth proportional to 57,789.20, 79,749.09 and 31,293.20 is: 43,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,789.20 : 79,749.09 = 31,293.20 : x
  2. Step 2: Convert to fraction form
    57,789.20/79,749.09 = 31,293.20/x
  3. Step 3: Cross multiply
    57,789.20x = 79,749.09 × 31,293.20
  4. Step 4: Simplify right side
    57,789.20x = 2,495,603,824.44
  5. Step 5: Solve for x
    x = 2,495,603,824.44/57,789.20
  6. Step 6: Final answer
    x = 43,184.61

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1.5x scale

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.