Home / 87,398.01-120,727.97-68,516.17

Finding the Fourth Proportional to 87,398.01, 120,727.97 and 68,516.17

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Solution

The fourth proportional to 87,398.01, 120,727.97 and 68,516.17 is: 94,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,398.01 : 120,727.97 = 68,516.17 : x
  2. Step 2: Convert to fraction form
    87,398.01/120,727.97 = 68,516.17/x
  3. Step 3: Cross multiply
    87,398.01x = 120,727.97 × 68,516.17
  4. Step 4: Simplify right side
    87,398.01x = 8,271,817,936.80
  5. Step 5: Solve for x
    x = 8,271,817,936.80/87,398.01
  6. Step 6: Final answer
    x = 94,645.38

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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.