Finding the Fourth Proportional to 86,261.84, 119,041.08 and 48,536.12
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Solution
The fourth proportional to 86,261.84, 119,041.08 and 48,536.12 is: 66,979.70
Step by Step Solution
- Step 1: Write the proportion equation
86,261.84 : 119,041.08 = 48,536.12 : x - Step 2: Convert to fraction form
86,261.84/119,041.08 = 48,536.12/x - Step 3: Cross multiply
86,261.84x = 119,041.08 × 48,536.12 - Step 4: Simplify right side
86,261.84x = 5,777,792,143.81 - Step 5: Solve for x
x = 5,777,792,143.81/86,261.84 - Step 6: Final answer
x = 66,979.70
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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.