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Finding the Fourth Proportional to 45,063.78, 67,596.60 and 13,899

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Solution

The fourth proportional to 45,063.78, 67,596.60 and 13,899 is: 20,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,063.78 : 67,596.60 = 13,899 : x
  2. Step 2: Convert to fraction form
    45,063.78/67,596.60 = 13,899/x
  3. Step 3: Cross multiply
    45,063.78x = 67,596.60 × 13,899
  4. Step 4: Simplify right side
    45,063.78x = 939,525,143.40
  5. Step 5: Solve for x
    x = 939,525,143.40/45,063.78
  6. Step 6: Final answer
    x = 20,848.79

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1.5x scale

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.