Home / 87,685.23-120,976.94-53,658.25

Finding the Fourth Proportional to 87,685.23, 120,976.94 and 53,658.25

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Solution

The fourth proportional to 87,685.23, 120,976.94 and 53,658.25 is: 74,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685.23 : 120,976.94 = 53,658.25 : x
  2. Step 2: Convert to fraction form
    87,685.23/120,976.94 = 53,658.25/x
  3. Step 3: Cross multiply
    87,685.23x = 120,976.94 × 53,658.25
  4. Step 4: Simplify right side
    87,685.23x = 6,491,410,722.46
  5. Step 5: Solve for x
    x = 6,491,410,722.46/87,685.23
  6. Step 6: Final answer
    x = 74,030.83

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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.