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Finding the Fourth Proportional to 172,955.79, 259,441.43 and 53,004.06

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Solution

The fourth proportional to 172,955.79, 259,441.43 and 53,004.06 is: 79,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.79 : 259,441.43 = 53,004.06 : x
  2. Step 2: Convert to fraction form
    172,955.79/259,441.43 = 53,004.06/x
  3. Step 3: Cross multiply
    172,955.79x = 259,441.43 × 53,004.06
  4. Step 4: Simplify right side
    172,955.79x = 13,751,448,857.19
  5. Step 5: Solve for x
    x = 13,751,448,857.19/172,955.79
  6. Step 6: Final answer
    x = 79,508.46

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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.