Finding the Fourth Proportional to 75,715.45, 104,483.99 and 43,427.02
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Solution
The fourth proportional to 75,715.45, 104,483.99 and 43,427.02 is: 59,927.38
Step by Step Solution
- Step 1: Write the proportion equation
75,715.45 : 104,483.99 = 43,427.02 : x - Step 2: Convert to fraction form
75,715.45/104,483.99 = 43,427.02/x - Step 3: Cross multiply
75,715.45x = 104,483.99 × 43,427.02 - Step 4: Simplify right side
75,715.45x = 4,537,428,323.41 - Step 5: Solve for x
x = 4,537,428,323.41/75,715.45 - Step 6: Final answer
x = 59,927.38
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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.