Home / 87,458.39-131,018.47-73,249.72

Finding the Fourth Proportional to 87,458.39, 131,018.47 and 73,249.72

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Solution

The fourth proportional to 87,458.39, 131,018.47 and 73,249.72 is: 109,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.39 : 131,018.47 = 73,249.72 : x
  2. Step 2: Convert to fraction form
    87,458.39/131,018.47 = 73,249.72/x
  3. Step 3: Cross multiply
    87,458.39x = 131,018.47 × 73,249.72
  4. Step 4: Simplify right side
    87,458.39x = 9,597,066,468.64
  5. Step 5: Solve for x
    x = 9,597,066,468.64/87,458.39
  6. Step 6: Final answer
    x = 109,732.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.