Finding the Fourth Proportional to 76,288.61, 105,278.27 and 42,296.99
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Solution
The fourth proportional to 76,288.61, 105,278.27 and 42,296.99 is: 58,369.84
Step by Step Solution
- Step 1: Write the proportion equation
76,288.61 : 105,278.27 = 42,296.99 : x - Step 2: Convert to fraction form
76,288.61/105,278.27 = 42,296.99/x - Step 3: Cross multiply
76,288.61x = 105,278.27 × 42,296.99 - Step 4: Simplify right side
76,288.61x = 4,452,953,721.92 - Step 5: Solve for x
x = 4,452,953,721.92/76,288.61 - Step 6: Final answer
x = 58,369.84
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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.