Home / 101,040.75-139,434.37-55,722.92

Finding the Fourth Proportional to 101,040.75, 139,434.37 and 55,722.92

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Solution

The fourth proportional to 101,040.75, 139,434.37 and 55,722.92 is: 76,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,040.75 : 139,434.37 = 55,722.92 : x
  2. Step 2: Convert to fraction form
    101,040.75/139,434.37 = 55,722.92/x
  3. Step 3: Cross multiply
    101,040.75x = 139,434.37 × 55,722.92
  4. Step 4: Simplify right side
    101,040.75x = 7,769,689,408.28
  5. Step 5: Solve for x
    x = 7,769,689,408.28/101,040.75
  6. Step 6: Final answer
    x = 76,896.59

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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.