Finding the Fourth Proportional to 86,637.18, 119,523.15 and 58,293.66
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Solution
The fourth proportional to 86,637.18, 119,523.15 and 58,293.66 is: 80,420.92
Step by Step Solution
- Step 1: Write the proportion equation
86,637.18 : 119,523.15 = 58,293.66 : x - Step 2: Convert to fraction form
86,637.18/119,523.15 = 58,293.66/x - Step 3: Cross multiply
86,637.18x = 119,523.15 × 58,293.66 - Step 4: Simplify right side
86,637.18x = 6,967,441,868.23 - Step 5: Solve for x
x = 6,967,441,868.23/86,637.18 - Step 6: Final answer
x = 80,420.92
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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.