Finding the Fourth Proportional to 67,881.84, 101,781.68 and 30,434.96
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Solution
The fourth proportional to 67,881.84, 101,781.68 and 30,434.96 is: 45,634.02
Step by Step Solution
- Step 1: Write the proportion equation
67,881.84 : 101,781.68 = 30,434.96 : x - Step 2: Convert to fraction form
67,881.84/101,781.68 = 30,434.96/x - Step 3: Cross multiply
67,881.84x = 101,781.68 × 30,434.96 - Step 4: Simplify right side
67,881.84x = 3,097,721,359.53 - Step 5: Solve for x
x = 3,097,721,359.53/67,881.84 - Step 6: Final answer
x = 45,634.02
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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.