Finding the Fourth Proportional to 85,494.08, 117,960.10 and 61,290.07
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Solution
The fourth proportional to 85,494.08, 117,960.10 and 61,290.07 is: 84,564.71
Step by Step Solution
- Step 1: Write the proportion equation
85,494.08 : 117,960.10 = 61,290.07 : x - Step 2: Convert to fraction form
85,494.08/117,960.10 = 61,290.07/x - Step 3: Cross multiply
85,494.08x = 117,960.10 × 61,290.07 - Step 4: Simplify right side
85,494.08x = 7,229,782,338.08 - Step 5: Solve for x
x = 7,229,782,338.08/85,494.08 - Step 6: Final answer
x = 84,564.71
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1.5x scale
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.