Home / 90,530.85-124,933.40-54,744.78

Finding the Fourth Proportional to 90,530.85, 124,933.40 and 54,744.78

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Solution

The fourth proportional to 90,530.85, 124,933.40 and 54,744.78 is: 75,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.85 : 124,933.40 = 54,744.78 : x
  2. Step 2: Convert to fraction form
    90,530.85/124,933.40 = 54,744.78/x
  3. Step 3: Cross multiply
    90,530.85x = 124,933.40 × 54,744.78
  4. Step 4: Simplify right side
    90,530.85x = 6,839,451,497.65
  5. Step 5: Solve for x
    x = 6,839,451,497.65/90,530.85
  6. Step 6: Final answer
    x = 75,548.30

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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.