Finding the Fourth Proportional to 99,677.19, 137,552.03 and 54,356.05
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Solution
The fourth proportional to 99,677.19, 137,552.03 and 54,356.05 is: 75,009.99
Step by Step Solution
- Step 1: Write the proportion equation
99,677.19 : 137,552.03 = 54,356.05 : x - Step 2: Convert to fraction form
99,677.19/137,552.03 = 54,356.05/x - Step 3: Cross multiply
99,677.19x = 137,552.03 × 54,356.05 - Step 4: Simplify right side
99,677.19x = 7,476,785,020.28 - Step 5: Solve for x
x = 7,476,785,020.28/99,677.19 - Step 6: Final answer
x = 75,009.99
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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.