Finding the Fourth Proportional to 75,332.10, 112,878.18 and 39,792.06
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Solution
The fourth proportional to 75,332.10, 112,878.18 and 39,792.06 is: 59,624.72
Step by Step Solution
- Step 1: Write the proportion equation
75,332.10 : 112,878.18 = 39,792.06 : x - Step 2: Convert to fraction form
75,332.10/112,878.18 = 39,792.06/x - Step 3: Cross multiply
75,332.10x = 112,878.18 × 39,792.06 - Step 4: Simplify right side
75,332.10x = 4,491,655,311.25 - Step 5: Solve for x
x = 4,491,655,311.25/75,332.10 - Step 6: Final answer
x = 59,624.72
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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.