Home / 115,029.12-172,542.68-31,923.12

Finding the Fourth Proportional to 115,029.12, 172,542.68 and 31,923.12

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Solution

The fourth proportional to 115,029.12, 172,542.68 and 31,923.12 is: 47,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029.12 : 172,542.68 = 31,923.12 : x
  2. Step 2: Convert to fraction form
    115,029.12/172,542.68 = 31,923.12/x
  3. Step 3: Cross multiply
    115,029.12x = 172,542.68 × 31,923.12
  4. Step 4: Simplify right side
    115,029.12x = 5,508,100,678.76
  5. Step 5: Solve for x
    x = 5,508,100,678.76/115,029.12
  6. Step 6: Final answer
    x = 47,884.40

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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.