Finding the Fourth Proportional to 94,555.11, 130,444.72 and 67,687.82
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Solution
The fourth proportional to 94,555.11, 130,444.72 and 67,687.82 is: 93,379.60
Step by Step Solution
- Step 1: Write the proportion equation
94,555.11 : 130,444.72 = 67,687.82 : x - Step 2: Convert to fraction form
94,555.11/130,444.72 = 67,687.82/x - Step 3: Cross multiply
94,555.11x = 130,444.72 × 67,687.82 - Step 4: Simplify right side
94,555.11x = 8,829,518,727.31 - Step 5: Solve for x
x = 8,829,518,727.31/94,555.11 - Step 6: Final answer
x = 93,379.60
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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.