Finding the Fourth Proportional to 97,915.09, 135,122.34 and 55,473.52
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Solution
The fourth proportional to 97,915.09, 135,122.34 and 55,473.52 is: 76,553.18
Step by Step Solution
- Step 1: Write the proportion equation
97,915.09 : 135,122.34 = 55,473.52 : x - Step 2: Convert to fraction form
97,915.09/135,122.34 = 55,473.52/x - Step 3: Cross multiply
97,915.09x = 135,122.34 × 55,473.52 - Step 4: Simplify right side
97,915.09x = 7,495,711,830.44 - Step 5: Solve for x
x = 7,495,711,830.44/97,915.09 - Step 6: Final answer
x = 76,553.18
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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.