Home / 87,142.28-120,249.36-48,896.66

Finding the Fourth Proportional to 87,142.28, 120,249.36 and 48,896.66

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Solution

The fourth proportional to 87,142.28, 120,249.36 and 48,896.66 is: 67,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,142.28 : 120,249.36 = 48,896.66 : x
  2. Step 2: Convert to fraction form
    87,142.28/120,249.36 = 48,896.66/x
  3. Step 3: Cross multiply
    87,142.28x = 120,249.36 × 48,896.66
  4. Step 4: Simplify right side
    87,142.28x = 5,879,792,071.14
  5. Step 5: Solve for x
    x = 5,879,792,071.14/87,142.28
  6. Step 6: Final answer
    x = 67,473.47

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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.