Finding the Fourth Proportional to 83,623.14, 115,395.90 and 47,817.08
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Solution
The fourth proportional to 83,623.14, 115,395.90 and 47,817.08 is: 65,985.26
Step by Step Solution
- Step 1: Write the proportion equation
83,623.14 : 115,395.90 = 47,817.08 : x - Step 2: Convert to fraction form
83,623.14/115,395.90 = 47,817.08/x - Step 3: Cross multiply
83,623.14x = 115,395.90 × 47,817.08 - Step 4: Simplify right side
83,623.14x = 5,517,894,981.97 - Step 5: Solve for x
x = 5,517,894,981.97/83,623.14 - Step 6: Final answer
x = 65,985.26
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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.