Home / 74,101.64-111,118.84-31,961.79

Finding the Fourth Proportional to 74,101.64, 111,118.84 and 31,961.79

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Solution

The fourth proportional to 74,101.64, 111,118.84 and 31,961.79 is: 47,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,101.64 : 111,118.84 = 31,961.79 : x
  2. Step 2: Convert to fraction form
    74,101.64/111,118.84 = 31,961.79/x
  3. Step 3: Cross multiply
    74,101.64x = 111,118.84 × 31,961.79
  4. Step 4: Simplify right side
    74,101.64x = 3,551,556,949.22
  5. Step 5: Solve for x
    x = 3,551,556,949.22/74,101.64
  6. Step 6: Final answer
    x = 47,928.19

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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.