Home / 172,356.28-258,534.50-54,036.85

Finding the Fourth Proportional to 172,356.28, 258,534.50 and 54,036.85

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Solution

The fourth proportional to 172,356.28, 258,534.50 and 54,036.85 is: 81,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,356.28 : 258,534.50 = 54,036.85 : x
  2. Step 2: Convert to fraction form
    172,356.28/258,534.50 = 54,036.85/x
  3. Step 3: Cross multiply
    172,356.28x = 258,534.50 × 54,036.85
  4. Step 4: Simplify right side
    172,356.28x = 13,970,389,868.51
  5. Step 5: Solve for x
    x = 13,970,389,868.51/172,356.28
  6. Step 6: Final answer
    x = 81,055.30

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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.