Home / 87,289.92-120,432.42-51,492.24

Finding the Fourth Proportional to 87,289.92, 120,432.42 and 51,492.24

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Solution

The fourth proportional to 87,289.92, 120,432.42 and 51,492.24 is: 71,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,289.92 : 120,432.42 = 51,492.24 : x
  2. Step 2: Convert to fraction form
    87,289.92/120,432.42 = 51,492.24/x
  3. Step 3: Cross multiply
    87,289.92x = 120,432.42 × 51,492.24
  4. Step 4: Simplify right side
    87,289.92x = 6,201,335,074.42
  5. Step 5: Solve for x
    x = 6,201,335,074.42/87,289.92
  6. Step 6: Final answer
    x = 71,042.97

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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.