Finding the Fourth Proportional to 76,860.16, 106,072.16 and 43,326.08
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Solution
The fourth proportional to 76,860.16, 106,072.16 and 43,326.08 is: 59,792.89
Step by Step Solution
- Step 1: Write the proportion equation
76,860.16 : 106,072.16 = 43,326.08 : x - Step 2: Convert to fraction form
76,860.16/106,072.16 = 43,326.08/x - Step 3: Cross multiply
76,860.16x = 106,072.16 × 43,326.08 - Step 4: Simplify right side
76,860.16x = 4,595,690,889.93 - Step 5: Solve for x
x = 4,595,690,889.93/76,860.16 - Step 6: Final answer
x = 59,792.89
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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.