Finding the Fourth Proportional to 76,817.90, 106,009.64 and 44,559.99
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Solution
The fourth proportional to 76,817.90, 106,009.64 and 44,559.99 is: 61,493.33
Step by Step Solution
- Step 1: Write the proportion equation
76,817.90 : 106,009.64 = 44,559.99 : x - Step 2: Convert to fraction form
76,817.90/106,009.64 = 44,559.99/x - Step 3: Cross multiply
76,817.90x = 106,009.64 × 44,559.99 - Step 4: Simplify right side
76,817.90x = 4,723,788,693.25 - Step 5: Solve for x
x = 4,723,788,693.25/76,817.90 - Step 6: Final answer
x = 61,493.33
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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.