Home / 50,685.75-75,977.60-21,119.94

Finding the Fourth Proportional to 50,685.75, 75,977.60 and 21,119.94

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Solution

The fourth proportional to 50,685.75, 75,977.60 and 21,119.94 is: 31,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,685.75 : 75,977.60 = 21,119.94 : x
  2. Step 2: Convert to fraction form
    50,685.75/75,977.60 = 21,119.94/x
  3. Step 3: Cross multiply
    50,685.75x = 75,977.60 × 21,119.94
  4. Step 4: Simplify right side
    50,685.75x = 1,604,642,247.74
  5. Step 5: Solve for x
    x = 1,604,642,247.74/50,685.75
  6. Step 6: Final answer
    x = 31,658.65

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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.