Finding the Fourth Proportional to 85,504.12, 117,997.08 and 49,681.06
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Solution
The fourth proportional to 85,504.12, 117,997.08 and 49,681.06 is: 68,560.67
Step by Step Solution
- Step 1: Write the proportion equation
85,504.12 : 117,997.08 = 49,681.06 : x - Step 2: Convert to fraction form
85,504.12/117,997.08 = 49,681.06/x - Step 3: Cross multiply
85,504.12x = 117,997.08 × 49,681.06 - Step 4: Simplify right side
85,504.12x = 5,862,220,011.30 - Step 5: Solve for x
x = 5,862,220,011.30/85,504.12 - Step 6: Final answer
x = 68,560.67
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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.