Home / 91,940.30-126,879.53-51,656.66

Finding the Fourth Proportional to 91,940.30, 126,879.53 and 51,656.66

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Solution

The fourth proportional to 91,940.30, 126,879.53 and 51,656.66 is: 71,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,940.30 : 126,879.53 = 51,656.66 : x
  2. Step 2: Convert to fraction form
    91,940.30/126,879.53 = 51,656.66/x
  3. Step 3: Cross multiply
    91,940.30x = 126,879.53 × 51,656.66
  4. Step 4: Simplify right side
    91,940.30x = 6,554,171,849.49
  5. Step 5: Solve for x
    x = 6,554,171,849.49/91,940.30
  6. Step 6: Final answer
    x = 71,287.26

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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.