Home / 85,240.95-127,940.21-43,150.57

Finding the Fourth Proportional to 85,240.95, 127,940.21 and 43,150.57

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Solution

The fourth proportional to 85,240.95, 127,940.21 and 43,150.57 is: 64,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.95 : 127,940.21 = 43,150.57 : x
  2. Step 2: Convert to fraction form
    85,240.95/127,940.21 = 43,150.57/x
  3. Step 3: Cross multiply
    85,240.95x = 127,940.21 × 43,150.57
  4. Step 4: Simplify right side
    85,240.95x = 5,520,692,771.67
  5. Step 5: Solve for x
    x = 5,520,692,771.67/85,240.95
  6. Step 6: Final answer
    x = 64,765.73

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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.