Finding the Fourth Proportional to 80,394.94, 110,948.31 and 48,557.62
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Solution
The fourth proportional to 80,394.94, 110,948.31 and 48,557.62 is: 67,011.50
Step by Step Solution
- Step 1: Write the proportion equation
80,394.94 : 110,948.31 = 48,557.62 : x - Step 2: Convert to fraction form
80,394.94/110,948.31 = 48,557.62/x - Step 3: Cross multiply
80,394.94x = 110,948.31 × 48,557.62 - Step 4: Simplify right side
80,394.94x = 5,387,385,876.62 - Step 5: Solve for x
x = 5,387,385,876.62/80,394.94 - Step 6: Final answer
x = 67,011.50
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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.