Finding the Fourth Proportional to 79,988.98, 119,851.98 and 27,369.76
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Solution
The fourth proportional to 79,988.98, 119,851.98 and 27,369.76 is: 41,009.65
Step by Step Solution
- Step 1: Write the proportion equation
79,988.98 : 119,851.98 = 27,369.76 : x - Step 2: Convert to fraction form
79,988.98/119,851.98 = 27,369.76/x - Step 3: Cross multiply
79,988.98x = 119,851.98 × 27,369.76 - Step 4: Simplify right side
79,988.98x = 3,280,319,928.12 - Step 5: Solve for x
x = 3,280,319,928.12/79,988.98 - Step 6: Final answer
x = 41,009.65
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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.