Home / 45,836-68,754.05-12,556.35

Finding the Fourth Proportional to 45,836, 68,754.05 and 12,556.35

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Solution

The fourth proportional to 45,836, 68,754.05 and 12,556.35 is: 18,834.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,836 : 68,754.05 = 12,556.35 : x
  2. Step 2: Convert to fraction form
    45,836/68,754.05 = 12,556.35/x
  3. Step 3: Cross multiply
    45,836x = 68,754.05 × 12,556.35
  4. Step 4: Simplify right side
    45,836x = 863,299,915.72
  5. Step 5: Solve for x
    x = 863,299,915.72/45,836
  6. Step 6: Final answer
    x = 18,834.54

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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.