Finding the Fourth Proportional to 86,369.19, 129,365.91 and 41,902.31
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Solution
The fourth proportional to 86,369.19, 129,365.91 and 41,902.31 is: 62,762.32
Step by Step Solution
- Step 1: Write the proportion equation
86,369.19 : 129,365.91 = 41,902.31 : x - Step 2: Convert to fraction form
86,369.19/129,365.91 = 41,902.31/x - Step 3: Cross multiply
86,369.19x = 129,365.91 × 41,902.31 - Step 4: Simplify right side
86,369.19x = 5,420,730,787.67 - Step 5: Solve for x
x = 5,420,730,787.67/86,369.19 - Step 6: Final answer
x = 62,762.32
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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.