Finding the Fourth Proportional to 98,737.73, 136,257.93 and 53,415.60
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Solution
The fourth proportional to 98,737.73, 136,257.93 and 53,415.60 is: 73,713.45
Step by Step Solution
- Step 1: Write the proportion equation
98,737.73 : 136,257.93 = 53,415.60 : x - Step 2: Convert to fraction form
98,737.73/136,257.93 = 53,415.60/x - Step 3: Cross multiply
98,737.73x = 136,257.93 × 53,415.60 - Step 4: Simplify right side
98,737.73x = 7,278,298,574.74 - Step 5: Solve for x
x = 7,278,298,574.74/98,737.73 - Step 6: Final answer
x = 73,713.45
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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.