Finding the Fourth Proportional to 79,324.71, 109,473.12 and 52,420.02
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Solution
The fourth proportional to 79,324.71, 109,473.12 and 52,420.02 is: 72,342.95
Step by Step Solution
- Step 1: Write the proportion equation
79,324.71 : 109,473.12 = 52,420.02 : x - Step 2: Convert to fraction form
79,324.71/109,473.12 = 52,420.02/x - Step 3: Cross multiply
79,324.71x = 109,473.12 × 52,420.02 - Step 4: Simplify right side
79,324.71x = 5,738,583,139.86 - Step 5: Solve for x
x = 5,738,583,139.86/79,324.71 - Step 6: Final answer
x = 72,342.95
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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.