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Finding the Fourth Proportional to 172,548.68, 258,821.52 and 47,889.68

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Solution

The fourth proportional to 172,548.68, 258,821.52 and 47,889.68 is: 71,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,548.68 : 258,821.52 = 47,889.68 : x
  2. Step 2: Convert to fraction form
    172,548.68/258,821.52 = 47,889.68/x
  3. Step 3: Cross multiply
    172,548.68x = 258,821.52 × 47,889.68
  4. Step 4: Simplify right side
    172,548.68x = 12,394,879,769.91
  5. Step 5: Solve for x
    x = 12,394,879,769.91/172,548.68
  6. Step 6: Final answer
    x = 71,834.10

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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.