Home / 44,076.90-66,115.88-12,912.78

Finding the Fourth Proportional to 44,076.90, 66,115.88 and 12,912.78

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Solution

The fourth proportional to 44,076.90, 66,115.88 and 12,912.78 is: 19,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,076.90 : 66,115.88 = 12,912.78 : x
  2. Step 2: Convert to fraction form
    44,076.90/66,115.88 = 12,912.78/x
  3. Step 3: Cross multiply
    44,076.90x = 66,115.88 × 12,912.78
  4. Step 4: Simplify right side
    44,076.90x = 853,739,812.95
  5. Step 5: Solve for x
    x = 853,739,812.95/44,076.90
  6. Step 6: Final answer
    x = 19,369.33

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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.