Finding the Fourth Proportional to 86,823.36, 119,685.60 and 67,927.68
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Solution
The fourth proportional to 86,823.36, 119,685.60 and 67,927.68 is: 93,637.99
Step by Step Solution
- Step 1: Write the proportion equation
86,823.36 : 119,685.60 = 67,927.68 : x - Step 2: Convert to fraction form
86,823.36/119,685.60 = 67,927.68/x - Step 3: Cross multiply
86,823.36x = 119,685.60 × 67,927.68 - Step 4: Simplify right side
86,823.36x = 8,129,965,137.41 - Step 5: Solve for x
x = 8,129,965,137.41/86,823.36 - Step 6: Final answer
x = 93,637.99
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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.