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Finding the Fourth Proportional to 172,548.78, 258,834.33 and 54,225.06

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Solution

The fourth proportional to 172,548.78, 258,834.33 and 54,225.06 is: 81,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,548.78 : 258,834.33 = 54,225.06 : x
  2. Step 2: Convert to fraction form
    172,548.78/258,834.33 = 54,225.06/x
  3. Step 3: Cross multiply
    172,548.78x = 258,834.33 × 54,225.06
  4. Step 4: Simplify right side
    172,548.78x = 14,035,307,074.31
  5. Step 5: Solve for x
    x = 14,035,307,074.31/172,548.78
  6. Step 6: Final answer
    x = 81,341.10

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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.