Finding the Fourth Proportional to 86,528.19, 129,791.70 and 46,565.98
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Solution
The fourth proportional to 86,528.19, 129,791.70 and 46,565.98 is: 69,848.65
Step by Step Solution
- Step 1: Write the proportion equation
86,528.19 : 129,791.70 = 46,565.98 : x - Step 2: Convert to fraction form
86,528.19/129,791.70 = 46,565.98/x - Step 3: Cross multiply
86,528.19x = 129,791.70 × 46,565.98 - Step 4: Simplify right side
86,528.19x = 6,043,877,381.89 - Step 5: Solve for x
x = 6,043,877,381.89/86,528.19 - Step 6: Final answer
x = 69,848.65
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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.