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Finding the Fourth Proportional to 91,903.86, 126,818.37 and 51,608.46

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Solution

The fourth proportional to 91,903.86, 126,818.37 and 51,608.46 is: 71,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,903.86 : 126,818.37 = 51,608.46 : x
  2. Step 2: Convert to fraction form
    91,903.86/126,818.37 = 51,608.46/x
  3. Step 3: Cross multiply
    91,903.86x = 126,818.37 × 51,608.46
  4. Step 4: Simplify right side
    91,903.86x = 6,544,900,775.41
  5. Step 5: Solve for x
    x = 6,544,900,775.41/91,903.86
  6. Step 6: Final answer
    x = 71,214.65

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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.