Home / 67,097.28-100,643.04-17,178.72

Finding the Fourth Proportional to 67,097.28, 100,643.04 and 17,178.72

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Solution

The fourth proportional to 67,097.28, 100,643.04 and 17,178.72 is: 25,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,097.28 : 100,643.04 = 17,178.72 : x
  2. Step 2: Convert to fraction form
    67,097.28/100,643.04 = 17,178.72/x
  3. Step 3: Cross multiply
    67,097.28x = 100,643.04 × 17,178.72
  4. Step 4: Simplify right side
    67,097.28x = 1,728,918,604.11
  5. Step 5: Solve for x
    x = 1,728,918,604.11/67,097.28
  6. Step 6: Final answer
    x = 25,767.34

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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.