Finding the Fourth Proportional to 91,977.14, 137,980.11 and 29,653.94
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Solution
The fourth proportional to 91,977.14, 137,980.11 and 29,653.94 is: 44,485.55
Step by Step Solution
- Step 1: Write the proportion equation
91,977.14 : 137,980.11 = 29,653.94 : x - Step 2: Convert to fraction form
91,977.14/137,980.11 = 29,653.94/x - Step 3: Cross multiply
91,977.14x = 137,980.11 × 29,653.94 - Step 4: Simplify right side
91,977.14x = 4,091,653,903.13 - Step 5: Solve for x
x = 4,091,653,903.13/91,977.14 - Step 6: Final answer
x = 44,485.55
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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.