Finding the Fourth Proportional to 79,320.80, 118,905.35 and 29,387.49
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Solution
The fourth proportional to 79,320.80, 118,905.35 and 29,387.49 is: 44,053.13
Step by Step Solution
- Step 1: Write the proportion equation
79,320.80 : 118,905.35 = 29,387.49 : x - Step 2: Convert to fraction form
79,320.80/118,905.35 = 29,387.49/x - Step 3: Cross multiply
79,320.80x = 118,905.35 × 29,387.49 - Step 4: Simplify right side
79,320.80x = 3,494,329,637.13 - Step 5: Solve for x
x = 3,494,329,637.13/79,320.80 - Step 6: Final answer
x = 44,053.13
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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.