Home / 47,118.99-65,016.84-30,138.42

Finding the Fourth Proportional to 47,118.99, 65,016.84 and 30,138.42

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Solution

The fourth proportional to 47,118.99, 65,016.84 and 30,138.42 is: 41,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,118.99 : 65,016.84 = 30,138.42 : x
  2. Step 2: Convert to fraction form
    47,118.99/65,016.84 = 30,138.42/x
  3. Step 3: Cross multiply
    47,118.99x = 65,016.84 × 30,138.42
  4. Step 4: Simplify right side
    47,118.99x = 1,959,504,830.99
  5. Step 5: Solve for x
    x = 1,959,504,830.99/47,118.99
  6. Step 6: Final answer
    x = 41,586.31

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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.