Home / 45,507.80-68,216.34-21,771.56

Finding the Fourth Proportional to 45,507.80, 68,216.34 and 21,771.56

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Solution

The fourth proportional to 45,507.80, 68,216.34 and 21,771.56 is: 32,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,507.80 : 68,216.34 = 21,771.56 : x
  2. Step 2: Convert to fraction form
    45,507.80/68,216.34 = 21,771.56/x
  3. Step 3: Cross multiply
    45,507.80x = 68,216.34 × 21,771.56
  4. Step 4: Simplify right side
    45,507.80x = 1,485,176,139.29
  5. Step 5: Solve for x
    x = 1,485,176,139.29/45,507.80
  6. Step 6: Final answer
    x = 32,635.64

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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.