Finding the Fourth Proportional to 76,963.36, 106,269.56 and 59,029.96
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Solution
The fourth proportional to 76,963.36, 106,269.56 and 59,029.96 is: 81,507.46
Step by Step Solution
- Step 1: Write the proportion equation
76,963.36 : 106,269.56 = 59,029.96 : x - Step 2: Convert to fraction form
76,963.36/106,269.56 = 59,029.96/x - Step 3: Cross multiply
76,963.36x = 106,269.56 × 59,029.96 - Step 4: Simplify right side
76,963.36x = 6,273,087,876.02 - Step 5: Solve for x
x = 6,273,087,876.02/76,963.36 - Step 6: Final answer
x = 81,507.46
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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.