Finding the Fourth Proportional to 77,070.96, 115,557.18 and 57,092.70
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Solution
The fourth proportional to 77,070.96, 115,557.18 and 57,092.70 is: 85,602.56
Step by Step Solution
- Step 1: Write the proportion equation
77,070.96 : 115,557.18 = 57,092.70 : x - Step 2: Convert to fraction form
77,070.96/115,557.18 = 57,092.70/x - Step 3: Cross multiply
77,070.96x = 115,557.18 × 57,092.70 - Step 4: Simplify right side
77,070.96x = 6,597,471,410.59 - Step 5: Solve for x
x = 6,597,471,410.59/77,070.96 - Step 6: Final answer
x = 85,602.56
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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.