Home / 74,289.72-111,438.36-21,703.44

Finding the Fourth Proportional to 74,289.72, 111,438.36 and 21,703.44

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Solution

The fourth proportional to 74,289.72, 111,438.36 and 21,703.44 is: 32,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,289.72 : 111,438.36 = 21,703.44 : x
  2. Step 2: Convert to fraction form
    74,289.72/111,438.36 = 21,703.44/x
  3. Step 3: Cross multiply
    74,289.72x = 111,438.36 × 21,703.44
  4. Step 4: Simplify right side
    74,289.72x = 2,418,595,759.96
  5. Step 5: Solve for x
    x = 2,418,595,759.96/74,289.72
  6. Step 6: Final answer
    x = 32,556.26

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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.