Finding the Fourth Proportional to 102,792.48, 141,853.86 and 57,472.08
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Solution
The fourth proportional to 102,792.48, 141,853.86 and 57,472.08 is: 79,311.60
Step by Step Solution
- Step 1: Write the proportion equation
102,792.48 : 141,853.86 = 57,472.08 : x - Step 2: Convert to fraction form
102,792.48/141,853.86 = 57,472.08/x - Step 3: Cross multiply
102,792.48x = 141,853.86 × 57,472.08 - Step 4: Simplify right side
102,792.48x = 8,152,636,390.23 - Step 5: Solve for x
x = 8,152,636,390.23/102,792.48 - Step 6: Final answer
x = 79,311.60
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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.