Home / 50,695.50-75,992.22-21,129.70

Finding the Fourth Proportional to 50,695.50, 75,992.22 and 21,129.70

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Solution

The fourth proportional to 50,695.50, 75,992.22 and 21,129.70 is: 31,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,695.50 : 75,992.22 = 21,129.70 : x
  2. Step 2: Convert to fraction form
    50,695.50/75,992.22 = 21,129.70/x
  3. Step 3: Cross multiply
    50,695.50x = 75,992.22 × 21,129.70
  4. Step 4: Simplify right side
    50,695.50x = 1,605,692,810.93
  5. Step 5: Solve for x
    x = 1,605,692,810.93/50,695.50
  6. Step 6: Final answer
    x = 31,673.28

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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.