Home / 91,139.93-125,770.14-49,745.33

Finding the Fourth Proportional to 91,139.93, 125,770.14 and 49,745.33

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Solution

The fourth proportional to 91,139.93, 125,770.14 and 49,745.33 is: 68,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,139.93 : 125,770.14 = 49,745.33 : x
  2. Step 2: Convert to fraction form
    91,139.93/125,770.14 = 49,745.33/x
  3. Step 3: Cross multiply
    91,139.93x = 125,770.14 × 49,745.33
  4. Step 4: Simplify right side
    91,139.93x = 6,256,476,489.60
  5. Step 5: Solve for x
    x = 6,256,476,489.60/91,139.93
  6. Step 6: Final answer
    x = 68,646.93

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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.