Finding the Fourth Proportional to 76,539.28, 114,788.12 and 48,417.08
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Solution
The fourth proportional to 76,539.28, 114,788.12 and 48,417.08 is: 72,612.46
Step by Step Solution
- Step 1: Write the proportion equation
76,539.28 : 114,788.12 = 48,417.08 : x - Step 2: Convert to fraction form
76,539.28/114,788.12 = 48,417.08/x - Step 3: Cross multiply
76,539.28x = 114,788.12 × 48,417.08 - Step 4: Simplify right side
76,539.28x = 5,557,705,589.09 - Step 5: Solve for x
x = 5,557,705,589.09/76,539.28 - Step 6: Final answer
x = 72,612.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.