Home / 50,089.88-75,134.59-20,507.72

Finding the Fourth Proportional to 50,089.88, 75,134.59 and 20,507.72

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Solution

The fourth proportional to 50,089.88, 75,134.59 and 20,507.72 is: 30,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,089.88 : 75,134.59 = 20,507.72 : x
  2. Step 2: Convert to fraction form
    50,089.88/75,134.59 = 20,507.72/x
  3. Step 3: Cross multiply
    50,089.88x = 75,134.59 × 20,507.72
  4. Step 4: Simplify right side
    50,089.88x = 1,540,838,707.09
  5. Step 5: Solve for x
    x = 1,540,838,707.09/50,089.88
  6. Step 6: Final answer
    x = 30,761.48

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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.