Home / 317,747.64-476,621.24-81,090.40

Finding the Fourth Proportional to 317,747.64, 476,621.24 and 81,090.40

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Solution

The fourth proportional to 317,747.64, 476,621.24 and 81,090.40 is: 121,635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,747.64 : 476,621.24 = 81,090.40 : x
  2. Step 2: Convert to fraction form
    317,747.64/476,621.24 = 81,090.40/x
  3. Step 3: Cross multiply
    317,747.64x = 476,621.24 × 81,090.40
  4. Step 4: Simplify right side
    317,747.64x = 38,649,407,000.10
  5. Step 5: Solve for x
    x = 38,649,407,000.10/317,747.64
  6. Step 6: Final answer
    x = 121,635.54

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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.