Finding the Fourth Proportional to 71,656.84, 107,485.12 and 19,066.33
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Solution
The fourth proportional to 71,656.84, 107,485.12 and 19,066.33 is: 28,599.46
Step by Step Solution
- Step 1: Write the proportion equation
71,656.84 : 107,485.12 = 19,066.33 : x - Step 2: Convert to fraction form
71,656.84/107,485.12 = 19,066.33/x - Step 3: Cross multiply
71,656.84x = 107,485.12 × 19,066.33 - Step 4: Simplify right side
71,656.84x = 2,049,346,768.01 - Step 5: Solve for x
x = 2,049,346,768.01/71,656.84 - Step 6: Final answer
x = 28,599.46
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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.