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Finding the Fourth Proportional to 172,875.51, 259,313.31 and 54,556.11

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Solution

The fourth proportional to 172,875.51, 259,313.31 and 54,556.11 is: 81,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,875.51 : 259,313.31 = 54,556.11 : x
  2. Step 2: Convert to fraction form
    172,875.51/259,313.31 = 54,556.11/x
  3. Step 3: Cross multiply
    172,875.51x = 259,313.31 × 54,556.11
  4. Step 4: Simplify right side
    172,875.51x = 14,147,125,464.82
  5. Step 5: Solve for x
    x = 14,147,125,464.82/172,875.51
  6. Step 6: Final answer
    x = 81,834.18

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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.