Home / 87,113.30-120,200.58-58,474.56

Finding the Fourth Proportional to 87,113.30, 120,200.58 and 58,474.56

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Solution

The fourth proportional to 87,113.30, 120,200.58 and 58,474.56 is: 80,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.30 : 120,200.58 = 58,474.56 : x
  2. Step 2: Convert to fraction form
    87,113.30/120,200.58 = 58,474.56/x
  3. Step 3: Cross multiply
    87,113.30x = 120,200.58 × 58,474.56
  4. Step 4: Simplify right side
    87,113.30x = 7,028,676,027.24
  5. Step 5: Solve for x
    x = 7,028,676,027.24/87,113.30
  6. Step 6: Final answer
    x = 80,684.30

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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.