Home / 81,650.15-122,444.14-48,379.60

Finding the Fourth Proportional to 81,650.15, 122,444.14 and 48,379.60

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Solution

The fourth proportional to 81,650.15, 122,444.14 and 48,379.60 is: 72,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.15 : 122,444.14 = 48,379.60 : x
  2. Step 2: Convert to fraction form
    81,650.15/122,444.14 = 48,379.60/x
  3. Step 3: Cross multiply
    81,650.15x = 122,444.14 × 48,379.60
  4. Step 4: Simplify right side
    81,650.15x = 5,923,798,515.54
  5. Step 5: Solve for x
    x = 5,923,798,515.54/81,650.15
  6. Step 6: Final answer
    x = 72,550.98

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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.