Home / 317,747.92-476,621.54-81,090.60

Finding the Fourth Proportional to 317,747.92, 476,621.54 and 81,090.60

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Solution

The fourth proportional to 317,747.92, 476,621.54 and 81,090.60 is: 121,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,747.92 : 476,621.54 = 81,090.60 : x
  2. Step 2: Convert to fraction form
    317,747.92/476,621.54 = 81,090.60/x
  3. Step 3: Cross multiply
    317,747.92x = 476,621.54 × 81,090.60
  4. Step 4: Simplify right side
    317,747.92x = 38,649,526,651.52
  5. Step 5: Solve for x
    x = 38,649,526,651.52/317,747.92
  6. Step 6: Final answer
    x = 121,635.81

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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.