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Finding the Fourth Proportional to 172,325.70, 258,488.64 and 54,006.26

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Solution

The fourth proportional to 172,325.70, 258,488.64 and 54,006.26 is: 81,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,325.70 : 258,488.64 = 54,006.26 : x
  2. Step 2: Convert to fraction form
    172,325.70/258,488.64 = 54,006.26/x
  3. Step 3: Cross multiply
    172,325.70x = 258,488.64 × 54,006.26
  4. Step 4: Simplify right side
    172,325.70x = 13,960,003,406.44
  5. Step 5: Solve for x
    x = 13,960,003,406.44/172,325.70
  6. Step 6: Final answer
    x = 81,009.41

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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.