Home / 78,099.20-117,226.56-43,055.36

Finding the Fourth Proportional to 78,099.20, 117,226.56 and 43,055.36

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Solution

The fourth proportional to 78,099.20, 117,226.56 and 43,055.36 is: 64,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,099.20 : 117,226.56 = 43,055.36 : x
  2. Step 2: Convert to fraction form
    78,099.20/117,226.56 = 43,055.36/x
  3. Step 3: Cross multiply
    78,099.20x = 117,226.56 × 43,055.36
  4. Step 4: Simplify right side
    78,099.20x = 5,047,231,742.36
  5. Step 5: Solve for x
    x = 5,047,231,742.36/78,099.20
  6. Step 6: Final answer
    x = 64,625.91

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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.