Home / 55,939.10-83,923.11-20,879.06

Finding the Fourth Proportional to 55,939.10, 83,923.11 and 20,879.06

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Solution

The fourth proportional to 55,939.10, 83,923.11 and 20,879.06 is: 31,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,939.10 : 83,923.11 = 20,879.06 : x
  2. Step 2: Convert to fraction form
    55,939.10/83,923.11 = 20,879.06/x
  3. Step 3: Cross multiply
    55,939.10x = 83,923.11 × 20,879.06
  4. Step 4: Simplify right side
    55,939.10x = 1,752,235,649.08
  5. Step 5: Solve for x
    x = 1,752,235,649.08/55,939.10
  6. Step 6: Final answer
    x = 31,323.99

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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.