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Finding the Fourth Proportional to 84,484.52, 126,673.32 and 71,955.44

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Solution

The fourth proportional to 84,484.52, 126,673.32 and 71,955.44 is: 107,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,484.52 : 126,673.32 = 71,955.44 : x
  2. Step 2: Convert to fraction form
    84,484.52/126,673.32 = 71,955.44/x
  3. Step 3: Cross multiply
    84,484.52x = 126,673.32 × 71,955.44
  4. Step 4: Simplify right side
    84,484.52x = 9,114,834,476.86
  5. Step 5: Solve for x
    x = 9,114,834,476.86/84,484.52
  6. Step 6: Final answer
    x = 107,887.63

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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.