Home / 77,577.44-107,020.24-66,367.35

Finding the Fourth Proportional to 77,577.44, 107,020.24 and 66,367.35

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Solution

The fourth proportional to 77,577.44, 107,020.24 and 66,367.35 is: 91,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,577.44 : 107,020.24 = 66,367.35 : x
  2. Step 2: Convert to fraction form
    77,577.44/107,020.24 = 66,367.35/x
  3. Step 3: Cross multiply
    77,577.44x = 107,020.24 × 66,367.35
  4. Step 4: Simplify right side
    77,577.44x = 7,102,649,559.25
  5. Step 5: Solve for x
    x = 7,102,649,559.25/77,577.44
  6. Step 6: Final answer
    x = 91,555.61

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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.