Finding the Fourth Proportional to 85,370.18, 128,022.44 and 58,994.96
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Solution
The fourth proportional to 85,370.18, 128,022.44 and 58,994.96 is: 88,469.75
Step by Step Solution
- Step 1: Write the proportion equation
85,370.18 : 128,022.44 = 58,994.96 : x - Step 2: Convert to fraction form
85,370.18/128,022.44 = 58,994.96/x - Step 3: Cross multiply
85,370.18x = 128,022.44 × 58,994.96 - Step 4: Simplify right side
85,370.18x = 7,552,678,726.90 - Step 5: Solve for x
x = 7,552,678,726.90/85,370.18 - Step 6: Final answer
x = 88,469.75
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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.