Home / 68,828.94-103,258.19-21,443.00

Finding the Fourth Proportional to 68,828.94, 103,258.19 and 21,443.00

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Solution

The fourth proportional to 68,828.94, 103,258.19 and 21,443.00 is: 32,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,828.94 : 103,258.19 = 21,443.00 : x
  2. Step 2: Convert to fraction form
    68,828.94/103,258.19 = 21,443.00/x
  3. Step 3: Cross multiply
    68,828.94x = 103,258.19 × 21,443.00
  4. Step 4: Simplify right side
    68,828.94x = 2,214,164,905.49
  5. Step 5: Solve for x
    x = 2,214,164,905.49/68,828.94
  6. Step 6: Final answer
    x = 32,169.10

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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.