Home / 91,451.86-126,208.46-51,163.21

Finding the Fourth Proportional to 91,451.86, 126,208.46 and 51,163.21

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Solution

The fourth proportional to 91,451.86, 126,208.46 and 51,163.21 is: 70,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,451.86 : 126,208.46 = 51,163.21 : x
  2. Step 2: Convert to fraction form
    91,451.86/126,208.46 = 51,163.21/x
  3. Step 3: Cross multiply
    91,451.86x = 126,208.46 × 51,163.21
  4. Step 4: Simplify right side
    91,451.86x = 6,457,229,942.76
  5. Step 5: Solve for x
    x = 6,457,229,942.76/91,451.86
  6. Step 6: Final answer
    x = 70,607.97

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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.