Finding the Fourth Proportional to 73,569.99, 110,336.76 and 20,979.93
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Solution
The fourth proportional to 73,569.99, 110,336.76 and 20,979.93 is: 31,464.70
Step by Step Solution
- Step 1: Write the proportion equation
73,569.99 : 110,336.76 = 20,979.93 : x - Step 2: Convert to fraction form
73,569.99/110,336.76 = 20,979.93/x - Step 3: Cross multiply
73,569.99x = 110,336.76 × 20,979.93 - Step 4: Simplify right side
73,569.99x = 2,314,857,501.23 - Step 5: Solve for x
x = 2,314,857,501.23/73,569.99 - Step 6: Final answer
x = 31,464.70
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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.