Home / 51,300.84-76,917.95-21,306.85

Finding the Fourth Proportional to 51,300.84, 76,917.95 and 21,306.85

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Solution

The fourth proportional to 51,300.84, 76,917.95 and 21,306.85 is: 31,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,300.84 : 76,917.95 = 21,306.85 : x
  2. Step 2: Convert to fraction form
    51,300.84/76,917.95 = 21,306.85/x
  3. Step 3: Cross multiply
    51,300.84x = 76,917.95 × 21,306.85
  4. Step 4: Simplify right side
    51,300.84x = 1,638,879,083.93
  5. Step 5: Solve for x
    x = 1,638,879,083.93/51,300.84
  6. Step 6: Final answer
    x = 31,946.44

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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.