Finding the Fourth Proportional to 72,251.03, 108,365.60 and 19,664.62
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Solution
The fourth proportional to 72,251.03, 108,365.60 and 19,664.62 is: 29,493.95
Step by Step Solution
- Step 1: Write the proportion equation
72,251.03 : 108,365.60 = 19,664.62 : x - Step 2: Convert to fraction form
72,251.03/108,365.60 = 19,664.62/x - Step 3: Cross multiply
72,251.03x = 108,365.60 × 19,664.62 - Step 4: Simplify right side
72,251.03x = 2,130,968,123.32 - Step 5: Solve for x
x = 2,130,968,123.32/72,251.03 - Step 6: Final answer
x = 29,493.95
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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.