Home / 87,906.29-121,311.27-47,620.06

Finding the Fourth Proportional to 87,906.29, 121,311.27 and 47,620.06

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Solution

The fourth proportional to 87,906.29, 121,311.27 and 47,620.06 is: 65,716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.29 : 121,311.27 = 47,620.06 : x
  2. Step 2: Convert to fraction form
    87,906.29/121,311.27 = 47,620.06/x
  3. Step 3: Cross multiply
    87,906.29x = 121,311.27 × 47,620.06
  4. Step 4: Simplify right side
    87,906.29x = 5,776,849,652.80
  5. Step 5: Solve for x
    x = 5,776,849,652.80/87,906.29
  6. Step 6: Final answer
    x = 65,716.00

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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.