Finding the Fourth Proportional to 69,118.99, 103,677.80 and 31,668.44
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Solution
The fourth proportional to 69,118.99, 103,677.80 and 31,668.44 is: 47,502.35
Step by Step Solution
- Step 1: Write the proportion equation
69,118.99 : 103,677.80 = 31,668.44 : x - Step 2: Convert to fraction form
69,118.99/103,677.80 = 31,668.44/x - Step 3: Cross multiply
69,118.99x = 103,677.80 × 31,668.44 - Step 4: Simplify right side
69,118.99x = 3,283,314,188.63 - Step 5: Solve for x
x = 3,283,314,188.63/69,118.99 - Step 6: Final answer
x = 47,502.35
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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.