Finding the Fourth Proportional to 83,443.68, 115,153.68 and 45,715.44
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Solution
The fourth proportional to 83,443.68, 115,153.68 and 45,715.44 is: 63,088.08
Step by Step Solution
- Step 1: Write the proportion equation
83,443.68 : 115,153.68 = 45,715.44 : x - Step 2: Convert to fraction form
83,443.68/115,153.68 = 45,715.44/x - Step 3: Cross multiply
83,443.68x = 115,153.68 × 45,715.44 - Step 4: Simplify right side
83,443.68x = 5,264,301,148.82 - Step 5: Solve for x
x = 5,264,301,148.82/83,443.68 - Step 6: Final answer
x = 63,088.08
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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.