Home / 91,236.07-125,866.68-57,221.38

Finding the Fourth Proportional to 91,236.07, 125,866.68 and 57,221.38

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Solution

The fourth proportional to 91,236.07, 125,866.68 and 57,221.38 is: 78,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,236.07 : 125,866.68 = 57,221.38 : x
  2. Step 2: Convert to fraction form
    91,236.07/125,866.68 = 57,221.38/x
  3. Step 3: Cross multiply
    91,236.07x = 125,866.68 × 57,221.38
  4. Step 4: Simplify right side
    91,236.07x = 7,202,265,125.62
  5. Step 5: Solve for x
    x = 7,202,265,125.62/91,236.07
  6. Step 6: Final answer
    x = 78,940.98

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1.5x scale

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.