Finding the Fourth Proportional to 98,917.68, 136,484.82 and 58,611.30
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Solution
The fourth proportional to 98,917.68, 136,484.82 and 58,611.30 is: 80,870.81
Step by Step Solution
- Step 1: Write the proportion equation
98,917.68 : 136,484.82 = 58,611.30 : x - Step 2: Convert to fraction form
98,917.68/136,484.82 = 58,611.30/x - Step 3: Cross multiply
98,917.68x = 136,484.82 × 58,611.30 - Step 4: Simplify right side
98,917.68x = 7,999,552,730.47 - Step 5: Solve for x
x = 7,999,552,730.47/98,917.68 - Step 6: Final answer
x = 80,870.81
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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.