Home / 68,669.60-102,817.08-51,979.04

Finding the Fourth Proportional to 68,669.60, 102,817.08 and 51,979.04

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Solution

The fourth proportional to 68,669.60, 102,817.08 and 51,979.04 is: 77,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669.60 : 102,817.08 = 51,979.04 : x
  2. Step 2: Convert to fraction form
    68,669.60/102,817.08 = 51,979.04/x
  3. Step 3: Cross multiply
    68,669.60x = 102,817.08 × 51,979.04
  4. Step 4: Simplify right side
    68,669.60x = 5,344,333,114.00
  5. Step 5: Solve for x
    x = 5,344,333,114.00/68,669.60
  6. Step 6: Final answer
    x = 77,826.77

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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.