Home / 51,450.42-77,172.66-19,854.30

Finding the Fourth Proportional to 51,450.42, 77,172.66 and 19,854.30

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Solution

The fourth proportional to 51,450.42, 77,172.66 and 19,854.30 is: 29,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,450.42 : 77,172.66 = 19,854.30 : x
  2. Step 2: Convert to fraction form
    51,450.42/77,172.66 = 19,854.30/x
  3. Step 3: Cross multiply
    51,450.42x = 77,172.66 × 19,854.30
  4. Step 4: Simplify right side
    51,450.42x = 1,532,209,143.44
  5. Step 5: Solve for x
    x = 1,532,209,143.44/51,450.42
  6. Step 6: Final answer
    x = 29,780.30

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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.