Finding the Fourth Proportional to 97,709.84, 134,837.18 and 54,689.90
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Solution
The fourth proportional to 97,709.84, 134,837.18 and 54,689.90 is: 75,470.72
Step by Step Solution
- Step 1: Write the proportion equation
97,709.84 : 134,837.18 = 54,689.90 : x - Step 2: Convert to fraction form
97,709.84/134,837.18 = 54,689.90/x - Step 3: Cross multiply
97,709.84x = 134,837.18 × 54,689.90 - Step 4: Simplify right side
97,709.84x = 7,374,231,890.48 - Step 5: Solve for x
x = 7,374,231,890.48/97,709.84 - Step 6: Final answer
x = 75,470.72
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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.