Home / 40,850.89-61,278.07-12,771.47

Finding the Fourth Proportional to 40,850.89, 61,278.07 and 12,771.47

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Solution

The fourth proportional to 40,850.89, 61,278.07 and 12,771.47 is: 19,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,850.89 : 61,278.07 = 12,771.47 : x
  2. Step 2: Convert to fraction form
    40,850.89/61,278.07 = 12,771.47/x
  3. Step 3: Cross multiply
    40,850.89x = 61,278.07 × 12,771.47
  4. Step 4: Simplify right side
    40,850.89x = 782,611,177.88
  5. Step 5: Solve for x
    x = 782,611,177.88/40,850.89
  6. Step 6: Final answer
    x = 19,157.75

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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.