Home / 91,905.86-126,821.13-51,610.46

Finding the Fourth Proportional to 91,905.86, 126,821.13 and 51,610.46

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Solution

The fourth proportional to 91,905.86, 126,821.13 and 51,610.46 is: 71,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,905.86 : 126,821.13 = 51,610.46 : x
  2. Step 2: Convert to fraction form
    91,905.86/126,821.13 = 51,610.46/x
  3. Step 3: Cross multiply
    91,905.86x = 126,821.13 × 51,610.46
  4. Step 4: Simplify right side
    91,905.86x = 6,545,296,857.02
  5. Step 5: Solve for x
    x = 6,545,296,857.02/91,905.86
  6. Step 6: Final answer
    x = 71,217.41

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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.