Finding the Fourth Proportional to 83,957.19, 115,663.81 and 58,419.70
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Solution
The fourth proportional to 83,957.19, 115,663.81 and 58,419.70 is: 80,482.02
Step by Step Solution
- Step 1: Write the proportion equation
83,957.19 : 115,663.81 = 58,419.70 : x - Step 2: Convert to fraction form
83,957.19/115,663.81 = 58,419.70/x - Step 3: Cross multiply
83,957.19x = 115,663.81 × 58,419.70 - Step 4: Simplify right side
83,957.19x = 6,757,044,645.85 - Step 5: Solve for x
x = 6,757,044,645.85/83,957.19 - Step 6: Final answer
x = 80,482.02
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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.