Finding the Fourth Proportional to 88,207.58, 121,725.87 and 47,921.06
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Solution
The fourth proportional to 88,207.58, 121,725.87 and 47,921.06 is: 66,130.74
Step by Step Solution
- Step 1: Write the proportion equation
88,207.58 : 121,725.87 = 47,921.06 : x - Step 2: Convert to fraction form
88,207.58/121,725.87 = 47,921.06/x - Step 3: Cross multiply
88,207.58x = 121,725.87 × 47,921.06 - Step 4: Simplify right side
88,207.58x = 5,833,232,719.82 - Step 5: Solve for x
x = 5,833,232,719.82/88,207.58 - Step 6: Final answer
x = 66,130.74
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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.