Home / 68,027.55-102,040.61-21,280.83

Finding the Fourth Proportional to 68,027.55, 102,040.61 and 21,280.83

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Solution

The fourth proportional to 68,027.55, 102,040.61 and 21,280.83 is: 31,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,027.55 : 102,040.61 = 21,280.83 : x
  2. Step 2: Convert to fraction form
    68,027.55/102,040.61 = 21,280.83/x
  3. Step 3: Cross multiply
    68,027.55x = 102,040.61 × 21,280.83
  4. Step 4: Simplify right side
    68,027.55x = 2,171,508,768.10
  5. Step 5: Solve for x
    x = 2,171,508,768.10/68,027.55
  6. Step 6: Final answer
    x = 31,921.02

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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.