Finding the Fourth Proportional to 79,103.84, 118,637.06 and 29,156.81
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Solution
The fourth proportional to 79,103.84, 118,637.06 and 29,156.81 is: 43,728.32
Step by Step Solution
- Step 1: Write the proportion equation
79,103.84 : 118,637.06 = 29,156.81 : x - Step 2: Convert to fraction form
79,103.84/118,637.06 = 29,156.81/x - Step 3: Cross multiply
79,103.84x = 118,637.06 × 29,156.81 - Step 4: Simplify right side
79,103.84x = 3,459,078,217.38 - Step 5: Solve for x
x = 3,459,078,217.38/79,103.84 - Step 6: Final answer
x = 43,728.32
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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.