Home / 69,091.11-103,097.84-61,644.39

Finding the Fourth Proportional to 69,091.11, 103,097.84 and 61,644.39

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Solution

The fourth proportional to 69,091.11, 103,097.84 and 61,644.39 is: 91,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091.11 : 103,097.84 = 61,644.39 : x
  2. Step 2: Convert to fraction form
    69,091.11/103,097.84 = 61,644.39/x
  3. Step 3: Cross multiply
    69,091.11x = 103,097.84 × 61,644.39
  4. Step 4: Simplify right side
    69,091.11x = 6,355,403,148.90
  5. Step 5: Solve for x
    x = 6,355,403,148.90/69,091.11
  6. Step 6: Final answer
    x = 91,985.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.