Home / 68,610.02-102,900.63-19,350.50

Finding the Fourth Proportional to 68,610.02, 102,900.63 and 19,350.50

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Solution

The fourth proportional to 68,610.02, 102,900.63 and 19,350.50 is: 29,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,610.02 : 102,900.63 = 19,350.50 : x
  2. Step 2: Convert to fraction form
    68,610.02/102,900.63 = 19,350.50/x
  3. Step 3: Cross multiply
    68,610.02x = 102,900.63 × 19,350.50
  4. Step 4: Simplify right side
    68,610.02x = 1,991,178,640.82
  5. Step 5: Solve for x
    x = 1,991,178,640.82/68,610.02
  6. Step 6: Final answer
    x = 29,021.69

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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.