Finding the Fourth Proportional to 69,640.36, 104,447.18 and 19,708.40
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Solution
The fourth proportional to 69,640.36, 104,447.18 and 19,708.40 is: 29,558.82
Step by Step Solution
- Step 1: Write the proportion equation
69,640.36 : 104,447.18 = 19,708.40 : x - Step 2: Convert to fraction form
69,640.36/104,447.18 = 19,708.40/x - Step 3: Cross multiply
69,640.36x = 104,447.18 × 19,708.40 - Step 4: Simplify right side
69,640.36x = 2,058,486,802.31 - Step 5: Solve for x
x = 2,058,486,802.31/69,640.36 - Step 6: Final answer
x = 29,558.82
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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.