Finding the Fourth Proportional to 72,506.34, 108,838.99 and 57,609.23
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Solution
The fourth proportional to 72,506.34, 108,838.99 and 57,609.23 is: 86,476.99
Step by Step Solution
- Step 1: Write the proportion equation
72,506.34 : 108,838.99 = 57,609.23 : x - Step 2: Convert to fraction form
72,506.34/108,838.99 = 57,609.23/x - Step 3: Cross multiply
72,506.34x = 108,838.99 × 57,609.23 - Step 4: Simplify right side
72,506.34x = 6,270,129,935.69 - Step 5: Solve for x
x = 6,270,129,935.69/72,506.34 - Step 6: Final answer
x = 86,476.99
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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.