Finding the Fourth Proportional to 90,275.06, 135,425.19 and 37,672.49
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Solution
The fourth proportional to 90,275.06, 135,425.19 and 37,672.49 is: 56,513.99
Step by Step Solution
- Step 1: Write the proportion equation
90,275.06 : 135,425.19 = 37,672.49 : x - Step 2: Convert to fraction form
90,275.06/135,425.19 = 37,672.49/x - Step 3: Cross multiply
90,275.06x = 135,425.19 × 37,672.49 - Step 4: Simplify right side
90,275.06x = 5,101,804,116.02 - Step 5: Solve for x
x = 5,101,804,116.02/90,275.06 - Step 6: Final answer
x = 56,513.99
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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.