Finding the Fourth Proportional to 85,032.09, 117,506.12 and 63,774.45
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Solution
The fourth proportional to 85,032.09, 117,506.12 and 63,774.45 is: 88,130.12
Step by Step Solution
- Step 1: Write the proportion equation
85,032.09 : 117,506.12 = 63,774.45 : x - Step 2: Convert to fraction form
85,032.09/117,506.12 = 63,774.45/x - Step 3: Cross multiply
85,032.09x = 117,506.12 × 63,774.45 - Step 4: Simplify right side
85,032.09x = 7,493,888,174.63 - Step 5: Solve for x
x = 7,493,888,174.63/85,032.09 - Step 6: Final answer
x = 88,130.12
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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.