Finding the Fourth Proportional to 77,398.44, 106,813.80 and 43,414.08
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Solution
The fourth proportional to 77,398.44, 106,813.80 and 43,414.08 is: 59,913.65
Step by Step Solution
- Step 1: Write the proportion equation
77,398.44 : 106,813.80 = 43,414.08 : x - Step 2: Convert to fraction form
77,398.44/106,813.80 = 43,414.08/x - Step 3: Cross multiply
77,398.44x = 106,813.80 × 43,414.08 - Step 4: Simplify right side
77,398.44x = 4,637,222,858.30 - Step 5: Solve for x
x = 4,637,222,858.30/77,398.44 - Step 6: Final answer
x = 59,913.65
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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.