Home / 91,867.85-126,745.62-57,879.37

Finding the Fourth Proportional to 91,867.85, 126,745.62 and 57,879.37

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Solution

The fourth proportional to 91,867.85, 126,745.62 and 57,879.37 is: 79,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,867.85 : 126,745.62 = 57,879.37 : x
  2. Step 2: Convert to fraction form
    91,867.85/126,745.62 = 57,879.37/x
  3. Step 3: Cross multiply
    91,867.85x = 126,745.62 × 57,879.37
  4. Step 4: Simplify right side
    91,867.85x = 7,335,956,635.86
  5. Step 5: Solve for x
    x = 7,335,956,635.86/91,867.85
  6. Step 6: Final answer
    x = 79,853.36

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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.