Home / 50,691.63-76,035.87-21,108.72

Finding the Fourth Proportional to 50,691.63, 76,035.87 and 21,108.72

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Solution

The fourth proportional to 50,691.63, 76,035.87 and 21,108.72 is: 31,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,691.63 : 76,035.87 = 21,108.72 : x
  2. Step 2: Convert to fraction form
    50,691.63/76,035.87 = 21,108.72/x
  3. Step 3: Cross multiply
    50,691.63x = 76,035.87 × 21,108.72
  4. Step 4: Simplify right side
    50,691.63x = 1,605,019,889.79
  5. Step 5: Solve for x
    x = 1,605,019,889.79/50,691.63
  6. Step 6: Final answer
    x = 31,662.42

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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.