Finding the Fourth Proportional to 71,129.03, 106,708.95 and 37,844.28
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Solution
The fourth proportional to 71,129.03, 106,708.95 and 37,844.28 is: 56,774.62
Step by Step Solution
- Step 1: Write the proportion equation
71,129.03 : 106,708.95 = 37,844.28 : x - Step 2: Convert to fraction form
71,129.03/106,708.95 = 37,844.28/x - Step 3: Cross multiply
71,129.03x = 106,708.95 × 37,844.28 - Step 4: Simplify right side
71,129.03x = 4,038,323,382.31 - Step 5: Solve for x
x = 4,038,323,382.31/71,129.03 - Step 6: Final answer
x = 56,774.62
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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.