Finding the Fourth Proportional to 98,577.12, 136,036.26 and 56,135.64
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Solution
The fourth proportional to 98,577.12, 136,036.26 and 56,135.64 is: 77,467.09
Step by Step Solution
- Step 1: Write the proportion equation
98,577.12 : 136,036.26 = 56,135.64 : x - Step 2: Convert to fraction form
98,577.12/136,036.26 = 56,135.64/x - Step 3: Cross multiply
98,577.12x = 136,036.26 × 56,135.64 - Step 4: Simplify right side
98,577.12x = 7,636,482,518.31 - Step 5: Solve for x
x = 7,636,482,518.31/98,577.12 - Step 6: Final answer
x = 77,467.09
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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.