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Finding the Fourth Proportional to 172,329.95, 258,495.02 and 54,010.51

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Solution

The fourth proportional to 172,329.95, 258,495.02 and 54,010.51 is: 81,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,329.95 : 258,495.02 = 54,010.51 : x
  2. Step 2: Convert to fraction form
    172,329.95/258,495.02 = 54,010.51/x
  3. Step 3: Cross multiply
    172,329.95x = 258,495.02 × 54,010.51
  4. Step 4: Simplify right side
    172,329.95x = 13,961,447,862.66
  5. Step 5: Solve for x
    x = 13,961,447,862.66/172,329.95
  6. Step 6: Final answer
    x = 81,015.79

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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.