Finding the Fourth Proportional to 93,146.99, 128,556.69 and 54,894.32
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Solution
The fourth proportional to 93,146.99, 128,556.69 and 54,894.32 is: 75,762.32
Step by Step Solution
- Step 1: Write the proportion equation
93,146.99 : 128,556.69 = 54,894.32 : x - Step 2: Convert to fraction form
93,146.99/128,556.69 = 54,894.32/x - Step 3: Cross multiply
93,146.99x = 128,556.69 × 54,894.32 - Step 4: Simplify right side
93,146.99x = 7,057,031,436.22 - Step 5: Solve for x
x = 7,057,031,436.22/93,146.99 - Step 6: Final answer
x = 75,762.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.