Finding the Fourth Proportional to 79,626.99, 109,878.80 and 43,811.31
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Solution
The fourth proportional to 79,626.99, 109,878.80 and 43,811.31 is: 60,456.06
Step by Step Solution
- Step 1: Write the proportion equation
79,626.99 : 109,878.80 = 43,811.31 : x - Step 2: Convert to fraction form
79,626.99/109,878.80 = 43,811.31/x - Step 3: Cross multiply
79,626.99x = 109,878.80 × 43,811.31 - Step 4: Simplify right side
79,626.99x = 4,813,933,950.17 - Step 5: Solve for x
x = 4,813,933,950.17/79,626.99 - Step 6: Final answer
x = 60,456.06
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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.