Finding the Fourth Proportional to 85,487.99, 118,006.35 and 76,519.67
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Solution
The fourth proportional to 85,487.99, 118,006.35 and 76,519.67 is: 105,626.61
Step by Step Solution
- Step 1: Write the proportion equation
85,487.99 : 118,006.35 = 76,519.67 : x - Step 2: Convert to fraction form
85,487.99/118,006.35 = 76,519.67/x - Step 3: Cross multiply
85,487.99x = 118,006.35 × 76,519.67 - Step 4: Simplify right side
85,487.99x = 9,029,806,959.90 - Step 5: Solve for x
x = 9,029,806,959.90/85,487.99 - Step 6: Final answer
x = 105,626.61
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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.