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Finding the Fourth Proportional to 172,661.80, 259,032.77 and 54,330.07

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Solution

The fourth proportional to 172,661.80, 259,032.77 and 54,330.07 is: 81,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,661.80 : 259,032.77 = 54,330.07 : x
  2. Step 2: Convert to fraction form
    172,661.80/259,032.77 = 54,330.07/x
  3. Step 3: Cross multiply
    172,661.80x = 259,032.77 × 54,330.07
  4. Step 4: Simplify right side
    172,661.80x = 14,073,267,568.06
  5. Step 5: Solve for x
    x = 14,073,267,568.06/172,661.80
  6. Step 6: Final answer
    x = 81,507.71

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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.