Home / 87,311.52-120,490.74-49,586.04

Finding the Fourth Proportional to 87,311.52, 120,490.74 and 49,586.04

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Solution

The fourth proportional to 87,311.52, 120,490.74 and 49,586.04 is: 68,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,311.52 : 120,490.74 = 49,586.04 : x
  2. Step 2: Convert to fraction form
    87,311.52/120,490.74 = 49,586.04/x
  3. Step 3: Cross multiply
    87,311.52x = 120,490.74 × 49,586.04
  4. Step 4: Simplify right side
    87,311.52x = 5,974,658,653.27
  5. Step 5: Solve for x
    x = 5,974,658,653.27/87,311.52
  6. Step 6: Final answer
    x = 68,429.21

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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.