Finding the Fourth Proportional to 87,642.08, 120,970.84 and 51,844.53
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Solution
The fourth proportional to 87,642.08, 120,970.84 and 51,844.53 is: 71,560.11
Step by Step Solution
- Step 1: Write the proportion equation
87,642.08 : 120,970.84 = 51,844.53 : x - Step 2: Convert to fraction form
87,642.08/120,970.84 = 51,844.53/x - Step 3: Cross multiply
87,642.08x = 120,970.84 × 51,844.53 - Step 4: Simplify right side
87,642.08x = 6,271,676,213.89 - Step 5: Solve for x
x = 6,271,676,213.89/87,642.08 - Step 6: Final answer
x = 71,560.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.