Home / 33,780.79-50,678.43-10,090.20

Finding the Fourth Proportional to 33,780.79, 50,678.43 and 10,090.20

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Solution

The fourth proportional to 33,780.79, 50,678.43 and 10,090.20 is: 15,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,780.79 : 50,678.43 = 10,090.20 : x
  2. Step 2: Convert to fraction form
    33,780.79/50,678.43 = 10,090.20/x
  3. Step 3: Cross multiply
    33,780.79x = 50,678.43 × 10,090.20
  4. Step 4: Simplify right side
    33,780.79x = 511,355,494.39
  5. Step 5: Solve for x
    x = 511,355,494.39/33,780.79
  6. Step 6: Final answer
    x = 15,137.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.