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Finding the Fourth Proportional to 79,370.56, 118,771.56 and 68,733.76

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Solution

The fourth proportional to 79,370.56, 118,771.56 and 68,733.76 is: 102,854.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,370.56 : 118,771.56 = 68,733.76 : x
  2. Step 2: Convert to fraction form
    79,370.56/118,771.56 = 68,733.76/x
  3. Step 3: Cross multiply
    79,370.56x = 118,771.56 × 68,733.76
  4. Step 4: Simplify right side
    79,370.56x = 8,163,615,899.87
  5. Step 5: Solve for x
    x = 8,163,615,899.87/79,370.56
  6. Step 6: Final answer
    x = 102,854.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.