Home / 68,288.35-102,444.62-20,902.39

Finding the Fourth Proportional to 68,288.35, 102,444.62 and 20,902.39

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Solution

The fourth proportional to 68,288.35, 102,444.62 and 20,902.39 is: 31,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,288.35 : 102,444.62 = 20,902.39 : x
  2. Step 2: Convert to fraction form
    68,288.35/102,444.62 = 20,902.39/x
  3. Step 3: Cross multiply
    68,288.35x = 102,444.62 × 20,902.39
  4. Step 4: Simplify right side
    68,288.35x = 2,141,337,400.64
  5. Step 5: Solve for x
    x = 2,141,337,400.64/68,288.35
  6. Step 6: Final answer
    x = 31,357.29

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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.