Finding the Fourth Proportional to 69,151.21, 103,560.50 and 39,479.08
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Solution
The fourth proportional to 69,151.21, 103,560.50 and 39,479.08 is: 59,123.67
Step by Step Solution
- Step 1: Write the proportion equation
69,151.21 : 103,560.50 = 39,479.08 : x - Step 2: Convert to fraction form
69,151.21/103,560.50 = 39,479.08/x - Step 3: Cross multiply
69,151.21x = 103,560.50 × 39,479.08 - Step 4: Simplify right side
69,151.21x = 4,088,473,264.34 - Step 5: Solve for x
x = 4,088,473,264.34/69,151.21 - Step 6: Final answer
x = 59,123.67
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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.