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Finding the Fourth Proportional to 68,009.36, 102,014.06 and 20,624.36

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Solution

The fourth proportional to 68,009.36, 102,014.06 and 20,624.36 is: 30,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,009.36 : 102,014.06 = 20,624.36 : x
  2. Step 2: Convert to fraction form
    68,009.36/102,014.06 = 20,624.36/x
  3. Step 3: Cross multiply
    68,009.36x = 102,014.06 × 20,624.36
  4. Step 4: Simplify right side
    68,009.36x = 2,103,974,698.50
  5. Step 5: Solve for x
    x = 2,103,974,698.50/68,009.36
  6. Step 6: Final answer
    x = 30,936.55

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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.