Finding the Fourth Proportional to 85,918.12, 118,559.10 and 48,185.08
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Solution
The fourth proportional to 85,918.12, 118,559.10 and 48,185.08 is: 66,490.98
Step by Step Solution
- Step 1: Write the proportion equation
85,918.12 : 118,559.10 = 48,185.08 : x - Step 2: Convert to fraction form
85,918.12/118,559.10 = 48,185.08/x - Step 3: Cross multiply
85,918.12x = 118,559.10 × 48,185.08 - Step 4: Simplify right side
85,918.12x = 5,712,779,718.23 - Step 5: Solve for x
x = 5,712,779,718.23/85,918.12 - Step 6: Final answer
x = 66,490.98
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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.