Finding the Fourth Proportional to 93,636.21, 129,207.82 and 55,397.19
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Solution
The fourth proportional to 93,636.21, 129,207.82 and 55,397.19 is: 76,442.12
Step by Step Solution
- Step 1: Write the proportion equation
93,636.21 : 129,207.82 = 55,397.19 : x - Step 2: Convert to fraction form
93,636.21/129,207.82 = 55,397.19/x - Step 3: Cross multiply
93,636.21x = 129,207.82 × 55,397.19 - Step 4: Simplify right side
93,636.21x = 7,157,750,154.03 - Step 5: Solve for x
x = 7,157,750,154.03/93,636.21 - Step 6: Final answer
x = 76,442.12
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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.