Finding the Fourth Proportional to 81,588.29, 122,417.51 and 44,175.09
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Solution
The fourth proportional to 81,588.29, 122,417.51 and 44,175.09 is: 66,281.63
Step by Step Solution
- Step 1: Write the proportion equation
81,588.29 : 122,417.51 = 44,175.09 : x - Step 2: Convert to fraction form
81,588.29/122,417.51 = 44,175.09/x - Step 3: Cross multiply
81,588.29x = 122,417.51 × 44,175.09 - Step 4: Simplify right side
81,588.29x = 5,407,804,300.95 - Step 5: Solve for x
x = 5,407,804,300.95/81,588.29 - Step 6: Final answer
x = 66,281.63
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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.