Home / 90,403.84-135,452.66-54,757.43

Finding the Fourth Proportional to 90,403.84, 135,452.66 and 54,757.43

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Solution

The fourth proportional to 90,403.84, 135,452.66 and 54,757.43 is: 82,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,403.84 : 135,452.66 = 54,757.43 : x
  2. Step 2: Convert to fraction form
    90,403.84/135,452.66 = 54,757.43/x
  3. Step 3: Cross multiply
    90,403.84x = 135,452.66 × 54,757.43
  4. Step 4: Simplify right side
    90,403.84x = 7,417,039,274.48
  5. Step 5: Solve for x
    x = 7,417,039,274.48/90,403.84
  6. Step 6: Final answer
    x = 82,043.41

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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.