Finding the Fourth Proportional to 85,585.79, 118,104.99 and 47,342.90
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Solution
The fourth proportional to 85,585.79, 118,104.99 and 47,342.90 is: 65,331.32
Step by Step Solution
- Step 1: Write the proportion equation
85,585.79 : 118,104.99 = 47,342.90 : x - Step 2: Convert to fraction form
85,585.79/118,104.99 = 47,342.90/x - Step 3: Cross multiply
85,585.79x = 118,104.99 × 47,342.90 - Step 4: Simplify right side
85,585.79x = 5,591,432,731.07 - Step 5: Solve for x
x = 5,591,432,731.07/85,585.79 - Step 6: Final answer
x = 65,331.32
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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.