Home / 271,621.10-407,431.65-71,972.30

Finding the Fourth Proportional to 271,621.10, 407,431.65 and 71,972.30

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Solution

The fourth proportional to 271,621.10, 407,431.65 and 71,972.30 is: 107,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,621.10 : 407,431.65 = 71,972.30 : x
  2. Step 2: Convert to fraction form
    271,621.10/407,431.65 = 71,972.30/x
  3. Step 3: Cross multiply
    271,621.10x = 407,431.65 × 71,972.30
  4. Step 4: Simplify right side
    271,621.10x = 29,323,792,943.30
  5. Step 5: Solve for x
    x = 29,323,792,943.30/271,621.10
  6. Step 6: Final answer
    x = 107,958.45

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1.5x scale

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.