Home / 76,419.44-114,633.60-20,258.16

Finding the Fourth Proportional to 76,419.44, 114,633.60 and 20,258.16

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Solution

The fourth proportional to 76,419.44, 114,633.60 and 20,258.16 is: 30,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,419.44 : 114,633.60 = 20,258.16 : x
  2. Step 2: Convert to fraction form
    76,419.44/114,633.60 = 20,258.16/x
  3. Step 3: Cross multiply
    76,419.44x = 114,633.60 × 20,258.16
  4. Step 4: Simplify right side
    76,419.44x = 2,322,265,810.18
  5. Step 5: Solve for x
    x = 2,322,265,810.18/76,419.44
  6. Step 6: Final answer
    x = 30,388.42

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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.