Finding the Fourth Proportional to 77,830.37, 116,572.87 and 63,543.79
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Solution
The fourth proportional to 77,830.37, 116,572.87 and 63,543.79 is: 95,174.70
Step by Step Solution
- Step 1: Write the proportion equation
77,830.37 : 116,572.87 = 63,543.79 : x - Step 2: Convert to fraction form
77,830.37/116,572.87 = 63,543.79/x - Step 3: Cross multiply
77,830.37x = 116,572.87 × 63,543.79 - Step 4: Simplify right side
77,830.37x = 7,407,482,196.12 - Step 5: Solve for x
x = 7,407,482,196.12/77,830.37 - Step 6: Final answer
x = 95,174.70
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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.