Home / 87,847.92-121,228.65-47,561.36

Finding the Fourth Proportional to 87,847.92, 121,228.65 and 47,561.36

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Solution

The fourth proportional to 87,847.92, 121,228.65 and 47,561.36 is: 65,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.92 : 121,228.65 = 47,561.36 : x
  2. Step 2: Convert to fraction form
    87,847.92/121,228.65 = 47,561.36/x
  3. Step 3: Cross multiply
    87,847.92x = 121,228.65 × 47,561.36
  4. Step 4: Simplify right side
    87,847.92x = 5,765,798,858.82
  5. Step 5: Solve for x
    x = 5,765,798,858.82/87,847.92
  6. Step 6: Final answer
    x = 65,633.87

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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.