Finding the Fourth Proportional to 98,893.98, 136,470.06 and 56,450.70
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Solution
The fourth proportional to 98,893.98, 136,470.06 and 56,450.70 is: 77,899.89
Step by Step Solution
- Step 1: Write the proportion equation
98,893.98 : 136,470.06 = 56,450.70 : x - Step 2: Convert to fraction form
98,893.98/136,470.06 = 56,450.70/x - Step 3: Cross multiply
98,893.98x = 136,470.06 × 56,450.70 - Step 4: Simplify right side
98,893.98x = 7,703,830,416.04 - Step 5: Solve for x
x = 7,703,830,416.04/98,893.98 - Step 6: Final answer
x = 77,899.89
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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.