Home / 87,840.39-121,218.87-47,553.12

Finding the Fourth Proportional to 87,840.39, 121,218.87 and 47,553.12

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Solution

The fourth proportional to 87,840.39, 121,218.87 and 47,553.12 is: 65,622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.39 : 121,218.87 = 47,553.12 : x
  2. Step 2: Convert to fraction form
    87,840.39/121,218.87 = 47,553.12/x
  3. Step 3: Cross multiply
    87,840.39x = 121,218.87 × 47,553.12
  4. Step 4: Simplify right side
    87,840.39x = 5,764,335,471.37
  5. Step 5: Solve for x
    x = 5,764,335,471.37/87,840.39
  6. Step 6: Final answer
    x = 65,622.84

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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.