Finding the Fourth Proportional to 77,369.18, 116,063.28 and 29,985.05
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Solution
The fourth proportional to 77,369.18, 116,063.28 and 29,985.05 is: 44,981.27
Step by Step Solution
- Step 1: Write the proportion equation
77,369.18 : 116,063.28 = 29,985.05 : x - Step 2: Convert to fraction form
77,369.18/116,063.28 = 29,985.05/x - Step 3: Cross multiply
77,369.18x = 116,063.28 × 29,985.05 - Step 4: Simplify right side
77,369.18x = 3,480,163,544.12 - Step 5: Solve for x
x = 3,480,163,544.12/77,369.18 - Step 6: Final answer
x = 44,981.27
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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.