Finding the Fourth Proportional to 84,643.36, 126,855.68 and 40,283.71
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Solution
The fourth proportional to 84,643.36, 126,855.68 and 40,283.71 is: 60,373.52
Step by Step Solution
- Step 1: Write the proportion equation
84,643.36 : 126,855.68 = 40,283.71 : x - Step 2: Convert to fraction form
84,643.36/126,855.68 = 40,283.71/x - Step 3: Cross multiply
84,643.36x = 126,855.68 × 40,283.71 - Step 4: Simplify right side
84,643.36x = 5,110,217,424.97 - Step 5: Solve for x
x = 5,110,217,424.97/84,643.36 - Step 6: Final answer
x = 60,373.52
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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.