Home / 82,119.59-113,325.57-51,918.54

Finding the Fourth Proportional to 82,119.59, 113,325.57 and 51,918.54

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Solution

The fourth proportional to 82,119.59, 113,325.57 and 51,918.54 is: 71,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,119.59 : 113,325.57 = 51,918.54 : x
  2. Step 2: Convert to fraction form
    82,119.59/113,325.57 = 51,918.54/x
  3. Step 3: Cross multiply
    82,119.59x = 113,325.57 × 51,918.54
  4. Step 4: Simplify right side
    82,119.59x = 5,883,698,139.07
  5. Step 5: Solve for x
    x = 5,883,698,139.07/82,119.59
  6. Step 6: Final answer
    x = 71,647.93

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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.