Home / 67,288.10-100,895.70-27,800.60

Finding the Fourth Proportional to 67,288.10, 100,895.70 and 27,800.60

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Solution

The fourth proportional to 67,288.10, 100,895.70 and 27,800.60 is: 41,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288.10 : 100,895.70 = 27,800.60 : x
  2. Step 2: Convert to fraction form
    67,288.10/100,895.70 = 27,800.60/x
  3. Step 3: Cross multiply
    67,288.10x = 100,895.70 × 27,800.60
  4. Step 4: Simplify right side
    67,288.10x = 2,804,960,997.42
  5. Step 5: Solve for x
    x = 2,804,960,997.42/67,288.10
  6. Step 6: Final answer
    x = 41,685.84

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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.