Home / 77,759.08-107,209.44-50,858.98

Finding the Fourth Proportional to 77,759.08, 107,209.44 and 50,858.98

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Solution

The fourth proportional to 77,759.08, 107,209.44 and 50,858.98 is: 70,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,759.08 : 107,209.44 = 50,858.98 : x
  2. Step 2: Convert to fraction form
    77,759.08/107,209.44 = 50,858.98/x
  3. Step 3: Cross multiply
    77,759.08x = 107,209.44 × 50,858.98
  4. Step 4: Simplify right side
    77,759.08x = 5,452,562,496.75
  5. Step 5: Solve for x
    x = 5,452,562,496.75/77,759.08
  6. Step 6: Final answer
    x = 70,121.23

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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.