Home / 53,505.21-80,263.97-31,318.79

Finding the Fourth Proportional to 53,505.21, 80,263.97 and 31,318.79

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Solution

The fourth proportional to 53,505.21, 80,263.97 and 31,318.79 is: 46,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,505.21 : 80,263.97 = 31,318.79 : x
  2. Step 2: Convert to fraction form
    53,505.21/80,263.97 = 31,318.79/x
  3. Step 3: Cross multiply
    53,505.21x = 80,263.97 × 31,318.79
  4. Step 4: Simplify right side
    53,505.21x = 2,513,770,019.68
  5. Step 5: Solve for x
    x = 2,513,770,019.68/53,505.21
  6. Step 6: Final answer
    x = 46,981.78

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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.