Home / 101,033.24-139,422.82-55,711.20

Finding the Fourth Proportional to 101,033.24, 139,422.82 and 55,711.20

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Solution

The fourth proportional to 101,033.24, 139,422.82 and 55,711.20 is: 76,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,033.24 : 139,422.82 = 55,711.20 : x
  2. Step 2: Convert to fraction form
    101,033.24/139,422.82 = 55,711.20/x
  3. Step 3: Cross multiply
    101,033.24x = 139,422.82 × 55,711.20
  4. Step 4: Simplify right side
    101,033.24x = 7,767,412,609.58
  5. Step 5: Solve for x
    x = 7,767,412,609.58/101,033.24
  6. Step 6: Final answer
    x = 76,879.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.