Home / 53,107.25-79,660.13-21,517.04

Finding the Fourth Proportional to 53,107.25, 79,660.13 and 21,517.04

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Solution

The fourth proportional to 53,107.25, 79,660.13 and 21,517.04 is: 32,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,107.25 : 79,660.13 = 21,517.04 : x
  2. Step 2: Convert to fraction form
    53,107.25/79,660.13 = 21,517.04/x
  3. Step 3: Cross multiply
    53,107.25x = 79,660.13 × 21,517.04
  4. Step 4: Simplify right side
    53,107.25x = 1,714,049,697.73
  5. Step 5: Solve for x
    x = 1,714,049,697.73/53,107.25
  6. Step 6: Final answer
    x = 32,275.25

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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.