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Finding the Fourth Proportional to 84,308.49, 126,469.98 and 34,392.06

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Solution

The fourth proportional to 84,308.49, 126,469.98 and 34,392.06 is: 51,591.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308.49 : 126,469.98 = 34,392.06 : x
  2. Step 2: Convert to fraction form
    84,308.49/126,469.98 = 34,392.06/x
  3. Step 3: Cross multiply
    84,308.49x = 126,469.98 × 34,392.06
  4. Step 4: Simplify right side
    84,308.49x = 4,349,563,140.36
  5. Step 5: Solve for x
    x = 4,349,563,140.36/84,308.49
  6. Step 6: Final answer
    x = 51,591.05

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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.