Finding the Fourth Proportional to 74,639.18, 111,962.02 and 27,866.54
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Solution
The fourth proportional to 74,639.18, 111,962.02 and 27,866.54 is: 41,801.02
Step by Step Solution
- Step 1: Write the proportion equation
74,639.18 : 111,962.02 = 27,866.54 : x - Step 2: Convert to fraction form
74,639.18/111,962.02 = 27,866.54/x - Step 3: Cross multiply
74,639.18x = 111,962.02 × 27,866.54 - Step 4: Simplify right side
74,639.18x = 3,119,994,108.81 - Step 5: Solve for x
x = 3,119,994,108.81/74,639.18 - Step 6: Final answer
x = 41,801.02
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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.