Home / 91,930.82-126,907.97-61,354.53

Finding the Fourth Proportional to 91,930.82, 126,907.97 and 61,354.53

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Solution

The fourth proportional to 91,930.82, 126,907.97 and 61,354.53 is: 84,698.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,930.82 : 126,907.97 = 61,354.53 : x
  2. Step 2: Convert to fraction form
    91,930.82/126,907.97 = 61,354.53/x
  3. Step 3: Cross multiply
    91,930.82x = 126,907.97 × 61,354.53
  4. Step 4: Simplify right side
    91,930.82x = 7,786,378,545.83
  5. Step 5: Solve for x
    x = 7,786,378,545.83/91,930.82
  6. Step 6: Final answer
    x = 84,698.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.