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Finding the Fourth Proportional to 172,376.56, 258,606.26 and 54,047.92

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Solution

The fourth proportional to 172,376.56, 258,606.26 and 54,047.92 is: 81,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.56 : 258,606.26 = 54,047.92 : x
  2. Step 2: Convert to fraction form
    172,376.56/258,606.26 = 54,047.92/x
  3. Step 3: Cross multiply
    172,376.56x = 258,606.26 × 54,047.92
  4. Step 4: Simplify right side
    172,376.56x = 13,977,130,451.98
  5. Step 5: Solve for x
    x = 13,977,130,451.98/172,376.56
  6. Step 6: Final answer
    x = 81,084.87

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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.