Finding the Fourth Proportional to 99,994.08, 137,997.88 and 57,551.68
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Solution
The fourth proportional to 99,994.08, 137,997.88 and 57,551.68 is: 79,424.80
Step by Step Solution
- Step 1: Write the proportion equation
99,994.08 : 137,997.88 = 57,551.68 : x - Step 2: Convert to fraction form
99,994.08/137,997.88 = 57,551.68/x - Step 3: Cross multiply
99,994.08x = 137,997.88 × 57,551.68 - Step 4: Simplify right side
99,994.08x = 7,942,009,830.44 - Step 5: Solve for x
x = 7,942,009,830.44/99,994.08 - Step 6: Final answer
x = 79,424.80
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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.