Home / 51,145.62-76,699.80-17,859.48

Finding the Fourth Proportional to 51,145.62, 76,699.80 and 17,859.48

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Solution

The fourth proportional to 51,145.62, 76,699.80 and 17,859.48 is: 26,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,145.62 : 76,699.80 = 17,859.48 : x
  2. Step 2: Convert to fraction form
    51,145.62/76,699.80 = 17,859.48/x
  3. Step 3: Cross multiply
    51,145.62x = 76,699.80 × 17,859.48
  4. Step 4: Simplify right side
    51,145.62x = 1,369,818,544.10
  5. Step 5: Solve for x
    x = 1,369,818,544.10/51,145.62
  6. Step 6: Final answer
    x = 26,782.71

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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.