Home / 47,171.22-65,117.84-31,674.78

Finding the Fourth Proportional to 47,171.22, 65,117.84 and 31,674.78

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Solution

The fourth proportional to 47,171.22, 65,117.84 and 31,674.78 is: 43,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,171.22 : 65,117.84 = 31,674.78 : x
  2. Step 2: Convert to fraction form
    47,171.22/65,117.84 = 31,674.78/x
  3. Step 3: Cross multiply
    47,171.22x = 65,117.84 × 31,674.78
  4. Step 4: Simplify right side
    47,171.22x = 2,062,593,097.70
  5. Step 5: Solve for x
    x = 2,062,593,097.70/47,171.22
  6. Step 6: Final answer
    x = 43,725.67

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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.