Home / 71,449.24-98,601.42-39,621.64

Finding the Fourth Proportional to 71,449.24, 98,601.42 and 39,621.64

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Solution

The fourth proportional to 71,449.24, 98,601.42 and 39,621.64 is: 54,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,449.24 : 98,601.42 = 39,621.64 : x
  2. Step 2: Convert to fraction form
    71,449.24/98,601.42 = 39,621.64/x
  3. Step 3: Cross multiply
    71,449.24x = 98,601.42 × 39,621.64
  4. Step 4: Simplify right side
    71,449.24x = 3,906,749,966.73
  5. Step 5: Solve for x
    x = 3,906,749,966.73/71,449.24
  6. Step 6: Final answer
    x = 54,678.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.