Home / 53,728.64-80,642.24-28,796.84

Finding the Fourth Proportional to 53,728.64, 80,642.24 and 28,796.84

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Solution

The fourth proportional to 53,728.64, 80,642.24 and 28,796.84 is: 43,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,728.64 : 80,642.24 = 28,796.84 : x
  2. Step 2: Convert to fraction form
    53,728.64/80,642.24 = 28,796.84/x
  3. Step 3: Cross multiply
    53,728.64x = 80,642.24 × 28,796.84
  4. Step 4: Simplify right side
    53,728.64x = 2,322,241,682.52
  5. Step 5: Solve for x
    x = 2,322,241,682.52/53,728.64
  6. Step 6: Final answer
    x = 43,221.67

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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.