Finding the Fourth Proportional to 83,706.30, 115,534.62 and 47,916.99
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Solution
The fourth proportional to 83,706.30, 115,534.62 and 47,916.99 is: 66,136.85
Step by Step Solution
- Step 1: Write the proportion equation
83,706.30 : 115,534.62 = 47,916.99 : x - Step 2: Convert to fraction form
83,706.30/115,534.62 = 47,916.99/x - Step 3: Cross multiply
83,706.30x = 115,534.62 × 47,916.99 - Step 4: Simplify right side
83,706.30x = 5,536,071,231.19 - Step 5: Solve for x
x = 5,536,071,231.19/83,706.30 - Step 6: Final answer
x = 66,136.85
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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.