Finding the Fourth Proportional to 92,865.36, 128,152.87 and 52,578.07
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Solution
The fourth proportional to 92,865.36, 128,152.87 and 52,578.07 is: 72,556.99
Step by Step Solution
- Step 1: Write the proportion equation
92,865.36 : 128,152.87 = 52,578.07 : x - Step 2: Convert to fraction form
92,865.36/128,152.87 = 52,578.07/x - Step 3: Cross multiply
92,865.36x = 128,152.87 × 52,578.07 - Step 4: Simplify right side
92,865.36x = 6,738,030,569.56 - Step 5: Solve for x
x = 6,738,030,569.56/92,865.36 - Step 6: Final answer
x = 72,556.99
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1.5x scale
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.