Finding the Fourth Proportional to 71,953.18, 107,929.08 and 40,363.18
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Solution
The fourth proportional to 71,953.18, 107,929.08 and 40,363.18 is: 60,544.38
Step by Step Solution
- Step 1: Write the proportion equation
71,953.18 : 107,929.08 = 40,363.18 : x - Step 2: Convert to fraction form
71,953.18/107,929.08 = 40,363.18/x - Step 3: Cross multiply
71,953.18x = 107,929.08 × 40,363.18 - Step 4: Simplify right side
71,953.18x = 4,356,360,883.27 - Step 5: Solve for x
x = 4,356,360,883.27/71,953.18 - Step 6: Final answer
x = 60,544.38
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1.5x scale
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.