Finding the Fourth Proportional to 88,249.09, 121,784.55 and 47,962.95
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Solution
The fourth proportional to 88,249.09, 121,784.55 and 47,962.95 is: 66,189.31
Step by Step Solution
- Step 1: Write the proportion equation
88,249.09 : 121,784.55 = 47,962.95 : x - Step 2: Convert to fraction form
88,249.09/121,784.55 = 47,962.95/x - Step 3: Cross multiply
88,249.09x = 121,784.55 × 47,962.95 - Step 4: Simplify right side
88,249.09x = 5,841,146,162.52 - Step 5: Solve for x
x = 5,841,146,162.52/88,249.09 - Step 6: Final answer
x = 66,189.31
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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.