Home / 90,635.70-125,074.55-49,799.75

Finding the Fourth Proportional to 90,635.70, 125,074.55 and 49,799.75

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Solution

The fourth proportional to 90,635.70, 125,074.55 and 49,799.75 is: 68,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.70 : 125,074.55 = 49,799.75 : x
  2. Step 2: Convert to fraction form
    90,635.70/125,074.55 = 49,799.75/x
  3. Step 3: Cross multiply
    90,635.70x = 125,074.55 × 49,799.75
  4. Step 4: Simplify right side
    90,635.70x = 6,228,681,758.55
  5. Step 5: Solve for x
    x = 6,228,681,758.55/90,635.70
  6. Step 6: Final answer
    x = 68,722.17

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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.