Finding the Fourth Proportional to 92,907.66, 128,265.76 and 61,168.82
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Solution
The fourth proportional to 92,907.66, 128,265.76 and 61,168.82 is: 84,447.99
Step by Step Solution
- Step 1: Write the proportion equation
92,907.66 : 128,265.76 = 61,168.82 : x - Step 2: Convert to fraction form
92,907.66/128,265.76 = 61,168.82/x - Step 3: Cross multiply
92,907.66x = 128,265.76 × 61,168.82 - Step 4: Simplify right side
92,907.66x = 7,845,865,185.60 - Step 5: Solve for x
x = 7,845,865,185.60/92,907.66 - Step 6: Final answer
x = 84,447.99
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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.