Home / 78,201.01-117,301.71-19,036.60

Finding the Fourth Proportional to 78,201.01, 117,301.71 and 19,036.60

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Solution

The fourth proportional to 78,201.01, 117,301.71 and 19,036.60 is: 28,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,201.01 : 117,301.71 = 19,036.60 : x
  2. Step 2: Convert to fraction form
    78,201.01/117,301.71 = 19,036.60/x
  3. Step 3: Cross multiply
    78,201.01x = 117,301.71 × 19,036.60
  4. Step 4: Simplify right side
    78,201.01x = 2,233,025,732.59
  5. Step 5: Solve for x
    x = 2,233,025,732.59/78,201.01
  6. Step 6: Final answer
    x = 28,554.95

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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.