Finding the Fourth Proportional to 76,638.74, 105,759.50 and 44,368.88
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Solution
The fourth proportional to 76,638.74, 105,759.50 and 44,368.88 is: 61,227.92
Step by Step Solution
- Step 1: Write the proportion equation
76,638.74 : 105,759.50 = 44,368.88 : x - Step 2: Convert to fraction form
76,638.74/105,759.50 = 44,368.88/x - Step 3: Cross multiply
76,638.74x = 105,759.50 × 44,368.88 - Step 4: Simplify right side
76,638.74x = 4,692,430,564.36 - Step 5: Solve for x
x = 4,692,430,564.36/76,638.74 - Step 6: Final answer
x = 61,227.92
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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.