Home / 51,469.98-77,208.03-19,880.28

Finding the Fourth Proportional to 51,469.98, 77,208.03 and 19,880.28

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Solution

The fourth proportional to 51,469.98, 77,208.03 and 19,880.28 is: 29,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469.98 : 77,208.03 = 19,880.28 : x
  2. Step 2: Convert to fraction form
    51,469.98/77,208.03 = 19,880.28/x
  3. Step 3: Cross multiply
    51,469.98x = 77,208.03 × 19,880.28
  4. Step 4: Simplify right side
    51,469.98x = 1,534,917,254.65
  5. Step 5: Solve for x
    x = 1,534,917,254.65/51,469.98
  6. Step 6: Final answer
    x = 29,821.60

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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.