Finding the Fourth Proportional to 88,164.16, 121,664.16 and 47,876.08
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Solution
The fourth proportional to 88,164.16, 121,664.16 and 47,876.08 is: 66,067.70
Step by Step Solution
- Step 1: Write the proportion equation
88,164.16 : 121,664.16 = 47,876.08 : x - Step 2: Convert to fraction form
88,164.16/121,664.16 = 47,876.08/x - Step 3: Cross multiply
88,164.16x = 121,664.16 × 47,876.08 - Step 4: Simplify right side
88,164.16x = 5,824,803,057.29 - Step 5: Solve for x
x = 5,824,803,057.29/88,164.16 - Step 6: Final answer
x = 66,067.70
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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.