Finding the Fourth Proportional to 74,587.06, 102,929.70 and 40,594.60
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Solution
The fourth proportional to 74,587.06, 102,929.70 and 40,594.60 is: 56,020.31
Step by Step Solution
- Step 1: Write the proportion equation
74,587.06 : 102,929.70 = 40,594.60 : x - Step 2: Convert to fraction form
74,587.06/102,929.70 = 40,594.60/x - Step 3: Cross multiply
74,587.06x = 102,929.70 × 40,594.60 - Step 4: Simplify right side
74,587.06x = 4,178,389,999.62 - Step 5: Solve for x
x = 4,178,389,999.62/74,587.06 - Step 6: Final answer
x = 56,020.31
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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.