Home / 87,285.32-120,464.98-53,286.68

Finding the Fourth Proportional to 87,285.32, 120,464.98 and 53,286.68

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Solution

The fourth proportional to 87,285.32, 120,464.98 and 53,286.68 is: 73,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,285.32 : 120,464.98 = 53,286.68 : x
  2. Step 2: Convert to fraction form
    87,285.32/120,464.98 = 53,286.68/x
  3. Step 3: Cross multiply
    87,285.32x = 120,464.98 × 53,286.68
  4. Step 4: Simplify right side
    87,285.32x = 6,419,178,840.47
  5. Step 5: Solve for x
    x = 6,419,178,840.47/87,285.32
  6. Step 6: Final answer
    x = 73,542.48

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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.