Home / 55,241.28-76,233.42-30,090.78

Finding the Fourth Proportional to 55,241.28, 76,233.42 and 30,090.78

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Solution

The fourth proportional to 55,241.28, 76,233.42 and 30,090.78 is: 41,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,241.28 : 76,233.42 = 30,090.78 : x
  2. Step 2: Convert to fraction form
    55,241.28/76,233.42 = 30,090.78/x
  3. Step 3: Cross multiply
    55,241.28x = 76,233.42 × 30,090.78
  4. Step 4: Simplify right side
    55,241.28x = 2,293,923,069.87
  5. Step 5: Solve for x
    x = 2,293,923,069.87/55,241.28
  6. Step 6: Final answer
    x = 41,525.52

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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.