Home / 57,107.18-78,806.75-31,613.54

Finding the Fourth Proportional to 57,107.18, 78,806.75 and 31,613.54

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Solution

The fourth proportional to 57,107.18, 78,806.75 and 31,613.54 is: 43,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.18 : 78,806.75 = 31,613.54 : x
  2. Step 2: Convert to fraction form
    57,107.18/78,806.75 = 31,613.54/x
  3. Step 3: Cross multiply
    57,107.18x = 78,806.75 × 31,613.54
  4. Step 4: Simplify right side
    57,107.18x = 2,491,360,028.40
  5. Step 5: Solve for x
    x = 2,491,360,028.40/57,107.18
  6. Step 6: Final answer
    x = 43,626.04

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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.