Home / 101,048.72-139,441.10-55,727.19

Finding the Fourth Proportional to 101,048.72, 139,441.10 and 55,727.19

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Solution

The fourth proportional to 101,048.72, 139,441.10 and 55,727.19 is: 76,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,048.72 : 139,441.10 = 55,727.19 : x
  2. Step 2: Convert to fraction form
    101,048.72/139,441.10 = 55,727.19/x
  3. Step 3: Cross multiply
    101,048.72x = 139,441.10 × 55,727.19
  4. Step 4: Simplify right side
    101,048.72x = 7,770,660,394.87
  5. Step 5: Solve for x
    x = 7,770,660,394.87/101,048.72
  6. Step 6: Final answer
    x = 76,900.14

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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.