Finding the Fourth Proportional to 80,736.40, 121,130.53 and 24,587.37
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Solution
The fourth proportional to 80,736.40, 121,130.53 and 24,587.37 is: 36,888.95
Step by Step Solution
- Step 1: Write the proportion equation
80,736.40 : 121,130.53 = 24,587.37 : x - Step 2: Convert to fraction form
80,736.40/121,130.53 = 24,587.37/x - Step 3: Cross multiply
80,736.40x = 121,130.53 × 24,587.37 - Step 4: Simplify right side
80,736.40x = 2,978,281,159.41 - Step 5: Solve for x
x = 2,978,281,159.41/80,736.40 - Step 6: Final answer
x = 36,888.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.