Home / 317,747.88-476,621.55-81,090.54

Finding the Fourth Proportional to 317,747.88, 476,621.55 and 81,090.54

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Solution

The fourth proportional to 317,747.88, 476,621.55 and 81,090.54 is: 121,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,747.88 : 476,621.55 = 81,090.54 : x
  2. Step 2: Convert to fraction form
    317,747.88/476,621.55 = 81,090.54/x
  3. Step 3: Cross multiply
    317,747.88x = 476,621.55 × 81,090.54
  4. Step 4: Simplify right side
    317,747.88x = 38,649,498,865.14
  5. Step 5: Solve for x
    x = 38,649,498,865.14/317,747.88
  6. Step 6: Final answer
    x = 121,635.74

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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.