Home / 51,449.16-77,176.74-19,859.39

Finding the Fourth Proportional to 51,449.16, 77,176.74 and 19,859.39

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Solution

The fourth proportional to 51,449.16, 77,176.74 and 19,859.39 is: 29,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,449.16 : 77,176.74 = 19,859.39 : x
  2. Step 2: Convert to fraction form
    51,449.16/77,176.74 = 19,859.39/x
  3. Step 3: Cross multiply
    51,449.16x = 77,176.74 × 19,859.39
  4. Step 4: Simplify right side
    51,449.16x = 1,532,682,592.70
  5. Step 5: Solve for x
    x = 1,532,682,592.70/51,449.16
  6. Step 6: Final answer
    x = 29,790.24

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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.