Home / 77,241.22-115,858.35-21,081.14

Finding the Fourth Proportional to 77,241.22, 115,858.35 and 21,081.14

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Solution

The fourth proportional to 77,241.22, 115,858.35 and 21,081.14 is: 31,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,241.22 : 115,858.35 = 21,081.14 : x
  2. Step 2: Convert to fraction form
    77,241.22/115,858.35 = 21,081.14/x
  3. Step 3: Cross multiply
    77,241.22x = 115,858.35 × 21,081.14
  4. Step 4: Simplify right side
    77,241.22x = 2,442,426,096.52
  5. Step 5: Solve for x
    x = 2,442,426,096.52/77,241.22
  6. Step 6: Final answer
    x = 31,620.76

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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.