Home / 83,658.24-115,502.40-51,861.12

Finding the Fourth Proportional to 83,658.24, 115,502.40 and 51,861.12

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Solution

The fourth proportional to 83,658.24, 115,502.40 and 51,861.12 is: 71,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,658.24 : 115,502.40 = 51,861.12 : x
  2. Step 2: Convert to fraction form
    83,658.24/115,502.40 = 51,861.12/x
  3. Step 3: Cross multiply
    83,658.24x = 115,502.40 × 51,861.12
  4. Step 4: Simplify right side
    83,658.24x = 5,990,083,826.69
  5. Step 5: Solve for x
    x = 5,990,083,826.69/83,658.24
  6. Step 6: Final answer
    x = 71,601.84

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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.