Finding the Fourth Proportional to 74,658.53, 103,159.85 and 59,674.75
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Solution
The fourth proportional to 74,658.53, 103,159.85 and 59,674.75 is: 82,455.92
Step by Step Solution
- Step 1: Write the proportion equation
74,658.53 : 103,159.85 = 59,674.75 : x - Step 2: Convert to fraction form
74,658.53/103,159.85 = 59,674.75/x - Step 3: Cross multiply
74,658.53x = 103,159.85 × 59,674.75 - Step 4: Simplify right side
74,658.53x = 6,156,037,702.51 - Step 5: Solve for x
x = 6,156,037,702.51/74,658.53 - Step 6: Final answer
x = 82,455.92
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1.5x scale
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.