Home / 51,072.12-76,578.75-19,870.92

Finding the Fourth Proportional to 51,072.12, 76,578.75 and 19,870.92

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Solution

The fourth proportional to 51,072.12, 76,578.75 and 19,870.92 is: 29,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,072.12 : 76,578.75 = 19,870.92 : x
  2. Step 2: Convert to fraction form
    51,072.12/76,578.75 = 19,870.92/x
  3. Step 3: Cross multiply
    51,072.12x = 76,578.75 × 19,870.92
  4. Step 4: Simplify right side
    51,072.12x = 1,521,690,214.95
  5. Step 5: Solve for x
    x = 1,521,690,214.95/51,072.12
  6. Step 6: Final answer
    x = 29,794.93

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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.