Home / 65,786.78-90,795.98-43,191.32

Finding the Fourth Proportional to 65,786.78, 90,795.98 and 43,191.32

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Solution

The fourth proportional to 65,786.78, 90,795.98 and 43,191.32 is: 59,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,786.78 : 90,795.98 = 43,191.32 : x
  2. Step 2: Convert to fraction form
    65,786.78/90,795.98 = 43,191.32/x
  3. Step 3: Cross multiply
    65,786.78x = 90,795.98 × 43,191.32
  4. Step 4: Simplify right side
    65,786.78x = 3,921,597,880.89
  5. Step 5: Solve for x
    x = 3,921,597,880.89/65,786.78
  6. Step 6: Final answer
    x = 59,610.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.