Home / 45,945.20-63,399.56-30,834.80

Finding the Fourth Proportional to 45,945.20, 63,399.56 and 30,834.80

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Solution

The fourth proportional to 45,945.20, 63,399.56 and 30,834.80 is: 42,548.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,945.20 : 63,399.56 = 30,834.80 : x
  2. Step 2: Convert to fraction form
    45,945.20/63,399.56 = 30,834.80/x
  3. Step 3: Cross multiply
    45,945.20x = 63,399.56 × 30,834.80
  4. Step 4: Simplify right side
    45,945.20x = 1,954,912,752.69
  5. Step 5: Solve for x
    x = 1,954,912,752.69/45,945.20
  6. Step 6: Final answer
    x = 42,548.79

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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.