Finding the Fourth Proportional to 84,701.75, 127,055.26 and 31,406.99
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Solution
The fourth proportional to 84,701.75, 127,055.26 and 31,406.99 is: 47,111.46
Step by Step Solution
- Step 1: Write the proportion equation
84,701.75 : 127,055.26 = 31,406.99 : x - Step 2: Convert to fraction form
84,701.75/127,055.26 = 31,406.99/x - Step 3: Cross multiply
84,701.75x = 127,055.26 × 31,406.99 - Step 4: Simplify right side
84,701.75x = 3,990,423,280.27 - Step 5: Solve for x
x = 3,990,423,280.27/84,701.75 - Step 6: Final answer
x = 47,111.46
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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.