Finding the Fourth Proportional to 79,842.18, 119,772.54 and 26,538.96
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Solution
The fourth proportional to 79,842.18, 119,772.54 and 26,538.96 is: 39,811.52
Step by Step Solution
- Step 1: Write the proportion equation
79,842.18 : 119,772.54 = 26,538.96 : x - Step 2: Convert to fraction form
79,842.18/119,772.54 = 26,538.96/x - Step 3: Cross multiply
79,842.18x = 119,772.54 × 26,538.96 - Step 4: Simplify right side
79,842.18x = 3,178,638,648.16 - Step 5: Solve for x
x = 3,178,638,648.16/79,842.18 - Step 6: Final answer
x = 39,811.52
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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.