Home / 51,451.49-77,174.91-19,855.75

Finding the Fourth Proportional to 51,451.49, 77,174.91 and 19,855.75

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Solution

The fourth proportional to 51,451.49, 77,174.91 and 19,855.75 is: 29,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,451.49 : 77,174.91 = 19,855.75 : x
  2. Step 2: Convert to fraction form
    51,451.49/77,174.91 = 19,855.75/x
  3. Step 3: Cross multiply
    51,451.49x = 77,174.91 × 19,855.75
  4. Step 4: Simplify right side
    51,451.49x = 1,532,365,719.23
  5. Step 5: Solve for x
    x = 1,532,365,719.23/51,451.49
  6. Step 6: Final answer
    x = 29,782.73

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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.