Home / 63,138.96-87,132-34,845.36

Finding the Fourth Proportional to 63,138.96, 87,132 and 34,845.36

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Solution

The fourth proportional to 63,138.96, 87,132 and 34,845.36 is: 48,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,138.96 : 87,132 = 34,845.36 : x
  2. Step 2: Convert to fraction form
    63,138.96/87,132 = 34,845.36/x
  3. Step 3: Cross multiply
    63,138.96x = 87,132 × 34,845.36
  4. Step 4: Simplify right side
    63,138.96x = 3,036,145,907.52
  5. Step 5: Solve for x
    x = 3,036,145,907.52/63,138.96
  6. Step 6: Final answer
    x = 48,086.73

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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.