Finding the Fourth Proportional to 84,646.35, 126,970.61 and 58,344.03
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Solution
The fourth proportional to 84,646.35, 126,970.61 and 58,344.03 is: 87,516.79
Step by Step Solution
- Step 1: Write the proportion equation
84,646.35 : 126,970.61 = 58,344.03 : x - Step 2: Convert to fraction form
84,646.35/126,970.61 = 58,344.03/x - Step 3: Cross multiply
84,646.35x = 126,970.61 × 58,344.03 - Step 4: Simplify right side
84,646.35x = 7,407,976,787.24 - Step 5: Solve for x
x = 7,407,976,787.24/84,646.35 - Step 6: Final answer
x = 87,516.79
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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.