Home / 78,281.37-117,270.94-46,716.66

Finding the Fourth Proportional to 78,281.37, 117,270.94 and 46,716.66

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Solution

The fourth proportional to 78,281.37, 117,270.94 and 46,716.66 is: 69,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,281.37 : 117,270.94 = 46,716.66 : x
  2. Step 2: Convert to fraction form
    78,281.37/117,270.94 = 46,716.66/x
  3. Step 3: Cross multiply
    78,281.37x = 117,270.94 × 46,716.66
  4. Step 4: Simplify right side
    78,281.37x = 5,478,505,811.92
  5. Step 5: Solve for x
    x = 5,478,505,811.92/78,281.37
  6. Step 6: Final answer
    x = 69,984.80

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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.