Home / 47,765.75-71,649.26-18,185.21

Finding the Fourth Proportional to 47,765.75, 71,649.26 and 18,185.21

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Solution

The fourth proportional to 47,765.75, 71,649.26 and 18,185.21 is: 27,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,765.75 : 71,649.26 = 18,185.21 : x
  2. Step 2: Convert to fraction form
    47,765.75/71,649.26 = 18,185.21/x
  3. Step 3: Cross multiply
    47,765.75x = 71,649.26 × 18,185.21
  4. Step 4: Simplify right side
    47,765.75x = 1,302,956,727.15
  5. Step 5: Solve for x
    x = 1,302,956,727.15/47,765.75
  6. Step 6: Final answer
    x = 27,278.05

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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.