Finding the Fourth Proportional to 74,633.06, 102,992.15 and 40,641.95
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Solution
The fourth proportional to 74,633.06, 102,992.15 and 40,641.95 is: 56,085.09
Step by Step Solution
- Step 1: Write the proportion equation
74,633.06 : 102,992.15 = 40,641.95 : x - Step 2: Convert to fraction form
74,633.06/102,992.15 = 40,641.95/x - Step 3: Cross multiply
74,633.06x = 102,992.15 × 40,641.95 - Step 4: Simplify right side
74,633.06x = 4,185,802,169.78 - Step 5: Solve for x
x = 4,185,802,169.78/74,633.06 - Step 6: Final answer
x = 56,085.09
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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.