Finding the Fourth Proportional to 88,270.61, 121,808.48 and 47,984.18
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Solution
The fourth proportional to 88,270.61, 121,808.48 and 47,984.18 is: 66,215.47
Step by Step Solution
- Step 1: Write the proportion equation
88,270.61 : 121,808.48 = 47,984.18 : x - Step 2: Convert to fraction form
88,270.61/121,808.48 = 47,984.18/x - Step 3: Cross multiply
88,270.61x = 121,808.48 × 47,984.18 - Step 4: Simplify right side
88,270.61x = 5,844,879,180.88 - Step 5: Solve for x
x = 5,844,879,180.88/88,270.61 - Step 6: Final answer
x = 66,215.47
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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.