Finding the Fourth Proportional to 76,899.66, 106,081.11 and 62,575.62
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Solution
The fourth proportional to 76,899.66, 106,081.11 and 62,575.62 is: 86,321.46
Step by Step Solution
- Step 1: Write the proportion equation
76,899.66 : 106,081.11 = 62,575.62 : x - Step 2: Convert to fraction form
76,899.66/106,081.11 = 62,575.62/x - Step 3: Cross multiply
76,899.66x = 106,081.11 × 62,575.62 - Step 4: Simplify right side
76,899.66x = 6,638,091,228.54 - Step 5: Solve for x
x = 6,638,091,228.54/76,899.66 - Step 6: Final answer
x = 86,321.46
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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.