Finding the Fourth Proportional to 74,193.18, 102,386.07 and 40,658.46
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Solution
The fourth proportional to 74,193.18, 102,386.07 and 40,658.46 is: 56,108.39
Step by Step Solution
- Step 1: Write the proportion equation
74,193.18 : 102,386.07 = 40,658.46 : x - Step 2: Convert to fraction form
74,193.18/102,386.07 = 40,658.46/x - Step 3: Cross multiply
74,193.18x = 102,386.07 × 40,658.46 - Step 4: Simplify right side
74,193.18x = 4,162,859,931.65 - Step 5: Solve for x
x = 4,162,859,931.65/74,193.18 - Step 6: Final answer
x = 56,108.39
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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.