Finding the Fourth Proportional to 79,251.66, 118,876.29 and 19,280.70
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Solution
The fourth proportional to 79,251.66, 118,876.29 and 19,280.70 is: 28,920.76
Step by Step Solution
- Step 1: Write the proportion equation
79,251.66 : 118,876.29 = 19,280.70 : x - Step 2: Convert to fraction form
79,251.66/118,876.29 = 19,280.70/x - Step 3: Cross multiply
79,251.66x = 118,876.29 × 19,280.70 - Step 4: Simplify right side
79,251.66x = 2,292,018,084.60 - Step 5: Solve for x
x = 2,292,018,084.60/79,251.66 - Step 6: Final answer
x = 28,920.76
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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.