Home / 115,409.88-172,982.52-52,949.16

Finding the Fourth Proportional to 115,409.88, 172,982.52 and 52,949.16

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Solution

The fourth proportional to 115,409.88, 172,982.52 and 52,949.16 is: 79,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,409.88 : 172,982.52 = 52,949.16 : x
  2. Step 2: Convert to fraction form
    115,409.88/172,982.52 = 52,949.16/x
  3. Step 3: Cross multiply
    115,409.88x = 172,982.52 × 52,949.16
  4. Step 4: Simplify right side
    115,409.88x = 9,159,279,128.68
  5. Step 5: Solve for x
    x = 9,159,279,128.68/115,409.88
  6. Step 6: Final answer
    x = 79,363.04

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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.