Finding the Fourth Proportional to 65,726.61, 90,702.79 and 35,511.99
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Solution
The fourth proportional to 65,726.61, 90,702.79 and 35,511.99 is: 49,006.58
Step by Step Solution
- Step 1: Write the proportion equation
65,726.61 : 90,702.79 = 35,511.99 : x - Step 2: Convert to fraction form
65,726.61/90,702.79 = 35,511.99/x - Step 3: Cross multiply
65,726.61x = 90,702.79 × 35,511.99 - Step 4: Simplify right side
65,726.61x = 3,221,036,142.54 - Step 5: Solve for x
x = 3,221,036,142.54/65,726.61 - Step 6: Final answer
x = 49,006.58
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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.