Home / 91,382.86-126,099.75-51,091.03

Finding the Fourth Proportional to 91,382.86, 126,099.75 and 51,091.03

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Solution

The fourth proportional to 91,382.86, 126,099.75 and 51,091.03 is: 70,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,382.86 : 126,099.75 = 51,091.03 : x
  2. Step 2: Convert to fraction form
    91,382.86/126,099.75 = 51,091.03/x
  3. Step 3: Cross multiply
    91,382.86x = 126,099.75 × 51,091.03
  4. Step 4: Simplify right side
    91,382.86x = 6,442,566,110.24
  5. Step 5: Solve for x
    x = 6,442,566,110.24/91,382.86
  6. Step 6: Final answer
    x = 70,500.82

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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.