Finding the Fourth Proportional to 79,231.13, 118,772.26 and 26,603.70
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Solution
The fourth proportional to 79,231.13, 118,772.26 and 26,603.70 is: 39,880.55
Step by Step Solution
- Step 1: Write the proportion equation
79,231.13 : 118,772.26 = 26,603.70 : x - Step 2: Convert to fraction form
79,231.13/118,772.26 = 26,603.70/x - Step 3: Cross multiply
79,231.13x = 118,772.26 × 26,603.70 - Step 4: Simplify right side
79,231.13x = 3,159,781,506.85 - Step 5: Solve for x
x = 3,159,781,506.85/79,231.13 - Step 6: Final answer
x = 39,880.55
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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.