Home / 101,040.24-139,443.48-55,722.36

Finding the Fourth Proportional to 101,040.24, 139,443.48 and 55,722.36

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Solution

The fourth proportional to 101,040.24, 139,443.48 and 55,722.36 is: 76,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,040.24 : 139,443.48 = 55,722.36 : x
  2. Step 2: Convert to fraction form
    101,040.24/139,443.48 = 55,722.36/x
  3. Step 3: Cross multiply
    101,040.24x = 139,443.48 × 55,722.36
  4. Step 4: Simplify right side
    101,040.24x = 7,770,119,792.21
  5. Step 5: Solve for x
    x = 7,770,119,792.21/101,040.24
  6. Step 6: Final answer
    x = 76,901.24

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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.