Home / 68,620.02-102,915.60-19,360.50

Finding the Fourth Proportional to 68,620.02, 102,915.60 and 19,360.50

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Solution

The fourth proportional to 68,620.02, 102,915.60 and 19,360.50 is: 29,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,620.02 : 102,915.60 = 19,360.50 : x
  2. Step 2: Convert to fraction form
    68,620.02/102,915.60 = 19,360.50/x
  3. Step 3: Cross multiply
    68,620.02x = 102,915.60 × 19,360.50
  4. Step 4: Simplify right side
    68,620.02x = 1,992,497,473.80
  5. Step 5: Solve for x
    x = 1,992,497,473.80/68,620.02
  6. Step 6: Final answer
    x = 29,036.68

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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.