Finding the Fourth Proportional to 88,161.84, 121,602.96 and 56,316.60
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Solution
The fourth proportional to 88,161.84, 121,602.96 and 56,316.60 is: 77,678.34
Step by Step Solution
- Step 1: Write the proportion equation
88,161.84 : 121,602.96 = 56,316.60 : x - Step 2: Convert to fraction form
88,161.84/121,602.96 = 56,316.60/x - Step 3: Cross multiply
88,161.84x = 121,602.96 × 56,316.60 - Step 4: Simplify right side
88,161.84x = 6,848,265,257.14 - Step 5: Solve for x
x = 6,848,265,257.14/88,161.84 - Step 6: Final answer
x = 77,678.34
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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.