Finding the Fourth Proportional to 79,574.08, 109,813.99 and 43,765.91
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Solution
The fourth proportional to 79,574.08, 109,813.99 and 43,765.91 is: 60,397.92
Step by Step Solution
- Step 1: Write the proportion equation
79,574.08 : 109,813.99 = 43,765.91 : x - Step 2: Convert to fraction form
79,574.08/109,813.99 = 43,765.91/x - Step 3: Cross multiply
79,574.08x = 109,813.99 × 43,765.91 - Step 4: Simplify right side
79,574.08x = 4,806,109,203.08 - Step 5: Solve for x
x = 4,806,109,203.08/79,574.08 - Step 6: Final answer
x = 60,397.92
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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.