Finding the Fourth Proportional to 77,720.75, 116,600.70 and 22,316.75
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Solution
The fourth proportional to 77,720.75, 116,600.70 and 22,316.75 is: 33,480.75
Step by Step Solution
- Step 1: Write the proportion equation
77,720.75 : 116,600.70 = 22,316.75 : x - Step 2: Convert to fraction form
77,720.75/116,600.70 = 22,316.75/x - Step 3: Cross multiply
77,720.75x = 116,600.70 × 22,316.75 - Step 4: Simplify right side
77,720.75x = 2,602,148,671.73 - Step 5: Solve for x
x = 2,602,148,671.73/77,720.75 - Step 6: Final answer
x = 33,480.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.