Finding the Fourth Proportional to 92,915.07, 128,231.37 and 52,630.53
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Solution
The fourth proportional to 92,915.07, 128,231.37 and 52,630.53 is: 72,634.99
Step by Step Solution
- Step 1: Write the proportion equation
92,915.07 : 128,231.37 = 52,630.53 : x - Step 2: Convert to fraction form
92,915.07/128,231.37 = 52,630.53/x - Step 3: Cross multiply
92,915.07x = 128,231.37 × 52,630.53 - Step 4: Simplify right side
92,915.07x = 6,748,884,965.73 - Step 5: Solve for x
x = 6,748,884,965.73/92,915.07 - Step 6: Final answer
x = 72,634.99
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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.