Home / 68,050.15-102,008.70-30,619.64

Finding the Fourth Proportional to 68,050.15, 102,008.70 and 30,619.64

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Solution

The fourth proportional to 68,050.15, 102,008.70 and 30,619.64 is: 45,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,050.15 : 102,008.70 = 30,619.64 : x
  2. Step 2: Convert to fraction form
    68,050.15/102,008.70 = 30,619.64/x
  3. Step 3: Cross multiply
    68,050.15x = 102,008.70 × 30,619.64
  4. Step 4: Simplify right side
    68,050.15x = 3,123,469,925.89
  5. Step 5: Solve for x
    x = 3,123,469,925.89/68,050.15
  6. Step 6: Final answer
    x = 45,899.53

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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.