Finding the Fourth Proportional to 90,970.74, 125,539.31 and 50,684.99
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Solution
The fourth proportional to 90,970.74, 125,539.31 and 50,684.99 is: 69,945.11
Step by Step Solution
- Step 1: Write the proportion equation
90,970.74 : 125,539.31 = 50,684.99 : x - Step 2: Convert to fraction form
90,970.74/125,539.31 = 50,684.99/x - Step 3: Cross multiply
90,970.74x = 125,539.31 × 50,684.99 - Step 4: Simplify right side
90,970.74x = 6,362,958,231.40 - Step 5: Solve for x
x = 6,362,958,231.40/90,970.74 - Step 6: Final answer
x = 69,945.11
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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.