Finding the Fourth Proportional to 76,759.02, 115,161.80 and 39,345.62
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Solution
The fourth proportional to 76,759.02, 115,161.80 and 39,345.62 is: 59,030.35
Step by Step Solution
- Step 1: Write the proportion equation
76,759.02 : 115,161.80 = 39,345.62 : x - Step 2: Convert to fraction form
76,759.02/115,161.80 = 39,345.62/x - Step 3: Cross multiply
76,759.02x = 115,161.80 × 39,345.62 - Step 4: Simplify right side
76,759.02x = 4,531,111,648.78 - Step 5: Solve for x
x = 4,531,111,648.78/76,759.02 - Step 6: Final answer
x = 59,030.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.