Finding the Fourth Proportional to 105,538.24, 145,643.04 and 57,791.92
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Solution
The fourth proportional to 105,538.24, 145,643.04 and 57,791.92 is: 79,753.00
Step by Step Solution
- Step 1: Write the proportion equation
105,538.24 : 145,643.04 = 57,791.92 : x - Step 2: Convert to fraction form
105,538.24/145,643.04 = 57,791.92/x - Step 3: Cross multiply
105,538.24x = 145,643.04 × 57,791.92 - Step 4: Simplify right side
105,538.24x = 8,416,990,916.24 - Step 5: Solve for x
x = 8,416,990,916.24/105,538.24 - Step 6: Final answer
x = 79,753.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.