Finding the Fourth Proportional to 77,174.37, 106,503.66 and 45,342.99
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Solution
The fourth proportional to 77,174.37, 106,503.66 and 45,342.99 is: 62,575.11
Step by Step Solution
- Step 1: Write the proportion equation
77,174.37 : 106,503.66 = 45,342.99 : x - Step 2: Convert to fraction form
77,174.37/106,503.66 = 45,342.99/x - Step 3: Cross multiply
77,174.37x = 106,503.66 × 45,342.99 - Step 4: Simplify right side
77,174.37x = 4,829,194,390.34 - Step 5: Solve for x
x = 4,829,194,390.34/77,174.37 - Step 6: Final answer
x = 62,575.11
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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.