Home / 78,928.44-108,921.36-43,119.06

Finding the Fourth Proportional to 78,928.44, 108,921.36 and 43,119.06

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Solution

The fourth proportional to 78,928.44, 108,921.36 and 43,119.06 is: 59,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.44 : 108,921.36 = 43,119.06 : x
  2. Step 2: Convert to fraction form
    78,928.44/108,921.36 = 43,119.06/x
  3. Step 3: Cross multiply
    78,928.44x = 108,921.36 × 43,119.06
  4. Step 4: Simplify right side
    78,928.44x = 4,696,586,657.12
  5. Step 5: Solve for x
    x = 4,696,586,657.12/78,928.44
  6. Step 6: Final answer
    x = 59,504.36

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1.5x scale

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.