Finding the Fourth Proportional to 93,243.21, 128,573.81 and 62,975.99
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Solution
The fourth proportional to 93,243.21, 128,573.81 and 62,975.99 is: 86,838.09
Step by Step Solution
- Step 1: Write the proportion equation
93,243.21 : 128,573.81 = 62,975.99 : x - Step 2: Convert to fraction form
93,243.21/128,573.81 = 62,975.99/x - Step 3: Cross multiply
93,243.21x = 128,573.81 × 62,975.99 - Step 4: Simplify right side
93,243.21x = 8,097,062,015.07 - Step 5: Solve for x
x = 8,097,062,015.07/93,243.21 - Step 6: Final answer
x = 86,838.09
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1.5x scale
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.