Home / 85,707.52-118,286.94-51,735.50

Finding the Fourth Proportional to 85,707.52, 118,286.94 and 51,735.50

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Solution

The fourth proportional to 85,707.52, 118,286.94 and 51,735.50 is: 71,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,707.52 : 118,286.94 = 51,735.50 : x
  2. Step 2: Convert to fraction form
    85,707.52/118,286.94 = 51,735.50/x
  3. Step 3: Cross multiply
    85,707.52x = 118,286.94 × 51,735.50
  4. Step 4: Simplify right side
    85,707.52x = 6,119,633,984.37
  5. Step 5: Solve for x
    x = 6,119,633,984.37/85,707.52
  6. Step 6: Final answer
    x = 71,401.37

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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.