Home / 78,268.69-117,400.93-22,112.67

Finding the Fourth Proportional to 78,268.69, 117,400.93 and 22,112.67

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Solution

The fourth proportional to 78,268.69, 117,400.93 and 22,112.67 is: 33,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,268.69 : 117,400.93 = 22,112.67 : x
  2. Step 2: Convert to fraction form
    78,268.69/117,400.93 = 22,112.67/x
  3. Step 3: Cross multiply
    78,268.69x = 117,400.93 × 22,112.67
  4. Step 4: Simplify right side
    78,268.69x = 2,596,048,022.78
  5. Step 5: Solve for x
    x = 2,596,048,022.78/78,268.69
  6. Step 6: Final answer
    x = 33,168.41

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1.5x scale

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.