Finding the Fourth Proportional to 84,987.75, 117,275.95 and 49,180.08
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Solution
The fourth proportional to 84,987.75, 117,275.95 and 49,180.08 is: 67,864.38
Step by Step Solution
- Step 1: Write the proportion equation
84,987.75 : 117,275.95 = 49,180.08 : x - Step 2: Convert to fraction form
84,987.75/117,275.95 = 49,180.08/x - Step 3: Cross multiply
84,987.75x = 117,275.95 × 49,180.08 - Step 4: Simplify right side
84,987.75x = 5,767,640,603.08 - Step 5: Solve for x
x = 5,767,640,603.08/84,987.75 - Step 6: Final answer
x = 67,864.38
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1.5x scale
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.