Home / 42,759.30-64,138.92-11,594.56

Finding the Fourth Proportional to 42,759.30, 64,138.92 and 11,594.56

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Solution

The fourth proportional to 42,759.30, 64,138.92 and 11,594.56 is: 17,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,759.30 : 64,138.92 = 11,594.56 : x
  2. Step 2: Convert to fraction form
    42,759.30/64,138.92 = 11,594.56/x
  3. Step 3: Cross multiply
    42,759.30x = 64,138.92 × 11,594.56
  4. Step 4: Simplify right side
    42,759.30x = 743,662,556.28
  5. Step 5: Solve for x
    x = 743,662,556.28/42,759.30
  6. Step 6: Final answer
    x = 17,391.83

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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.