Home / 67,740.84-101,618.46-20,997.36

Finding the Fourth Proportional to 67,740.84, 101,618.46 and 20,997.36

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Solution

The fourth proportional to 67,740.84, 101,618.46 and 20,997.36 is: 31,498.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,740.84 : 101,618.46 = 20,997.36 : x
  2. Step 2: Convert to fraction form
    67,740.84/101,618.46 = 20,997.36/x
  3. Step 3: Cross multiply
    67,740.84x = 101,618.46 × 20,997.36
  4. Step 4: Simplify right side
    67,740.84x = 2,133,719,387.27
  5. Step 5: Solve for x
    x = 2,133,719,387.27/67,740.84
  6. Step 6: Final answer
    x = 31,498.27

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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.