Finding the Fourth Proportional to 77,994.05, 107,628.96 and 48,938.08
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Solution
The fourth proportional to 77,994.05, 107,628.96 and 48,938.08 is: 67,532.77
Step by Step Solution
- Step 1: Write the proportion equation
77,994.05 : 107,628.96 = 48,938.08 : x - Step 2: Convert to fraction form
77,994.05/107,628.96 = 48,938.08/x - Step 3: Cross multiply
77,994.05x = 107,628.96 × 48,938.08 - Step 4: Simplify right side
77,994.05x = 5,267,154,145.32 - Step 5: Solve for x
x = 5,267,154,145.32/77,994.05 - Step 6: Final answer
x = 67,532.77
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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.