Home / 101,043.24-139,447.62-55,725.36

Finding the Fourth Proportional to 101,043.24, 139,447.62 and 55,725.36

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Solution

The fourth proportional to 101,043.24, 139,447.62 and 55,725.36 is: 76,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,043.24 : 139,447.62 = 55,725.36 : x
  2. Step 2: Convert to fraction form
    101,043.24/139,447.62 = 55,725.36/x
  3. Step 3: Cross multiply
    101,043.24x = 139,447.62 × 55,725.36
  4. Step 4: Simplify right side
    101,043.24x = 7,770,768,825.64
  5. Step 5: Solve for x
    x = 7,770,768,825.64/101,043.24
  6. Step 6: Final answer
    x = 76,905.38

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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.