Finding the Fourth Proportional to 88,989.18, 122,805.12 and 48,702.93
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Solution
The fourth proportional to 88,989.18, 122,805.12 and 48,702.93 is: 67,210.07
Step by Step Solution
- Step 1: Write the proportion equation
88,989.18 : 122,805.12 = 48,702.93 : x - Step 2: Convert to fraction form
88,989.18/122,805.12 = 48,702.93/x - Step 3: Cross multiply
88,989.18x = 122,805.12 × 48,702.93 - Step 4: Simplify right side
88,989.18x = 5,980,969,163.00 - Step 5: Solve for x
x = 5,980,969,163.00/88,989.18 - Step 6: Final answer
x = 67,210.07
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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.