Home / 68,355.09-102,543.57-28,923.48

Finding the Fourth Proportional to 68,355.09, 102,543.57 and 28,923.48

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Solution

The fourth proportional to 68,355.09, 102,543.57 and 28,923.48 is: 43,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,355.09 : 102,543.57 = 28,923.48 : x
  2. Step 2: Convert to fraction form
    68,355.09/102,543.57 = 28,923.48/x
  3. Step 3: Cross multiply
    68,355.09x = 102,543.57 × 28,923.48
  4. Step 4: Simplify right side
    68,355.09x = 2,965,916,896.02
  5. Step 5: Solve for x
    x = 2,965,916,896.02/68,355.09
  6. Step 6: Final answer
    x = 43,389.85

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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.