Finding the Fourth Proportional to 86,417.09, 129,625.64 and 27,257.38
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Solution
The fourth proportional to 86,417.09, 129,625.64 and 27,257.38 is: 40,886.07
Step by Step Solution
- Step 1: Write the proportion equation
86,417.09 : 129,625.64 = 27,257.38 : x - Step 2: Convert to fraction form
86,417.09/129,625.64 = 27,257.38/x - Step 3: Cross multiply
86,417.09x = 129,625.64 × 27,257.38 - Step 4: Simplify right side
86,417.09x = 3,533,255,071.30 - Step 5: Solve for x
x = 3,533,255,071.30/86,417.09 - Step 6: Final answer
x = 40,886.07
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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.