Home / 78,464.14-117,629.85-34,057.51

Finding the Fourth Proportional to 78,464.14, 117,629.85 and 34,057.51

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Solution

The fourth proportional to 78,464.14, 117,629.85 and 34,057.51 is: 51,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,464.14 : 117,629.85 = 34,057.51 : x
  2. Step 2: Convert to fraction form
    78,464.14/117,629.85 = 34,057.51/x
  3. Step 3: Cross multiply
    78,464.14x = 117,629.85 × 34,057.51
  4. Step 4: Simplify right side
    78,464.14x = 4,006,179,792.67
  5. Step 5: Solve for x
    x = 4,006,179,792.67/78,464.14
  6. Step 6: Final answer
    x = 51,057.46

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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.