Finding the Fourth Proportional to 85,488.99, 118,007.73 and 76,520.67
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Solution
The fourth proportional to 85,488.99, 118,007.73 and 76,520.67 is: 105,627.99
Step by Step Solution
- Step 1: Write the proportion equation
85,488.99 : 118,007.73 = 76,520.67 : x - Step 2: Convert to fraction form
85,488.99/118,007.73 = 76,520.67/x - Step 3: Cross multiply
85,488.99x = 118,007.73 × 76,520.67 - Step 4: Simplify right side
85,488.99x = 9,030,030,564.78 - Step 5: Solve for x
x = 9,030,030,564.78/85,488.99 - Step 6: Final answer
x = 105,627.99
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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.