Finding the Fourth Proportional to 74,430.75, 102,714.44 and 40,896.75
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Solution
The fourth proportional to 74,430.75, 102,714.44 and 40,896.75 is: 56,437.52
Step by Step Solution
- Step 1: Write the proportion equation
74,430.75 : 102,714.44 = 40,896.75 : x - Step 2: Convert to fraction form
74,430.75/102,714.44 = 40,896.75/x - Step 3: Cross multiply
74,430.75x = 102,714.44 × 40,896.75 - Step 4: Simplify right side
74,430.75x = 4,200,686,569.59 - Step 5: Solve for x
x = 4,200,686,569.59/74,430.75 - Step 6: Final answer
x = 56,437.52
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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.