Home / 115,319.80-172,922.10-52,919.80

Finding the Fourth Proportional to 115,319.80, 172,922.10 and 52,919.80

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Solution

The fourth proportional to 115,319.80, 172,922.10 and 52,919.80 is: 79,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,319.80 : 172,922.10 = 52,919.80 : x
  2. Step 2: Convert to fraction form
    115,319.80/172,922.10 = 52,919.80/x
  3. Step 3: Cross multiply
    115,319.80x = 172,922.10 × 52,919.80
  4. Step 4: Simplify right side
    115,319.80x = 9,151,002,947.58
  5. Step 5: Solve for x
    x = 9,151,002,947.58/115,319.80
  6. Step 6: Final answer
    x = 79,353.27

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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.