Finding the Fourth Proportional to 68,800.74, 103,201.24 and 18,881.52
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Solution
The fourth proportional to 68,800.74, 103,201.24 and 18,881.52 is: 28,322.32
Step by Step Solution
- Step 1: Write the proportion equation
68,800.74 : 103,201.24 = 18,881.52 : x - Step 2: Convert to fraction form
68,800.74/103,201.24 = 18,881.52/x - Step 3: Cross multiply
68,800.74x = 103,201.24 × 18,881.52 - Step 4: Simplify right side
68,800.74x = 1,948,596,277.08 - Step 5: Solve for x
x = 1,948,596,277.08/68,800.74 - Step 6: Final answer
x = 28,322.32
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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.