Home / 51,448.46-77,175.68-19,858.70

Finding the Fourth Proportional to 51,448.46, 77,175.68 and 19,858.70

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Solution

The fourth proportional to 51,448.46, 77,175.68 and 19,858.70 is: 29,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,448.46 : 77,175.68 = 19,858.70 : x
  2. Step 2: Convert to fraction form
    51,448.46/77,175.68 = 19,858.70/x
  3. Step 3: Cross multiply
    51,448.46x = 77,175.68 × 19,858.70
  4. Step 4: Simplify right side
    51,448.46x = 1,532,608,676.42
  5. Step 5: Solve for x
    x = 1,532,608,676.42/51,448.46
  6. Step 6: Final answer
    x = 29,789.20

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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.