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Finding the Fourth Proportional to 172,324.95, 258,487.56 and 54,005.49

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Solution

The fourth proportional to 172,324.95, 258,487.56 and 54,005.49 is: 81,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,324.95 : 258,487.56 = 54,005.49 : x
  2. Step 2: Convert to fraction form
    172,324.95/258,487.56 = 54,005.49/x
  3. Step 3: Cross multiply
    172,324.95x = 258,487.56 × 54,005.49
  4. Step 4: Simplify right side
    172,324.95x = 13,959,747,336.70
  5. Step 5: Solve for x
    x = 13,959,747,336.70/172,324.95
  6. Step 6: Final answer
    x = 81,008.28

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1.5x scale

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.