Home / 68,021.24-102,046.70-28,555.88

Finding the Fourth Proportional to 68,021.24, 102,046.70 and 28,555.88

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Solution

The fourth proportional to 68,021.24, 102,046.70 and 28,555.88 is: 42,840.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.24 : 102,046.70 = 28,555.88 : x
  2. Step 2: Convert to fraction form
    68,021.24/102,046.70 = 28,555.88/x
  3. Step 3: Cross multiply
    68,021.24x = 102,046.70 × 28,555.88
  4. Step 4: Simplify right side
    68,021.24x = 2,914,032,880.75
  5. Step 5: Solve for x
    x = 2,914,032,880.75/68,021.24
  6. Step 6: Final answer
    x = 42,840.05

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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.