Finding the Fourth Proportional to 84,623.79, 126,937.49 and 28,465.59
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Solution
The fourth proportional to 84,623.79, 126,937.49 and 28,465.59 is: 42,698.99
Step by Step Solution
- Step 1: Write the proportion equation
84,623.79 : 126,937.49 = 28,465.59 : x - Step 2: Convert to fraction form
84,623.79/126,937.49 = 28,465.59/x - Step 3: Cross multiply
84,623.79x = 126,937.49 × 28,465.59 - Step 4: Simplify right side
84,623.79x = 3,613,350,403.64 - Step 5: Solve for x
x = 3,613,350,403.64/84,623.79 - Step 6: Final answer
x = 42,698.99
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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.