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Finding the Fourth Proportional to 84,366, 126,555.48 and 28,962

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Solution

The fourth proportional to 84,366, 126,555.48 and 28,962 is: 43,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,366 : 126,555.48 = 28,962 : x
  2. Step 2: Convert to fraction form
    84,366/126,555.48 = 28,962/x
  3. Step 3: Cross multiply
    84,366x = 126,555.48 × 28,962
  4. Step 4: Simplify right side
    84,366x = 3,665,299,811.76
  5. Step 5: Solve for x
    x = 3,665,299,811.76/84,366
  6. Step 6: Final answer
    x = 43,445.22

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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.