Finding the Fourth Proportional to 75,497.80, 113,246.70 and 31,101.70
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Solution
The fourth proportional to 75,497.80, 113,246.70 and 31,101.70 is: 46,652.55
Step by Step Solution
- Step 1: Write the proportion equation
75,497.80 : 113,246.70 = 31,101.70 : x - Step 2: Convert to fraction form
75,497.80/113,246.70 = 31,101.70/x - Step 3: Cross multiply
75,497.80x = 113,246.70 × 31,101.70 - Step 4: Simplify right side
75,497.80x = 3,522,164,889.39 - Step 5: Solve for x
x = 3,522,164,889.39/75,497.80 - Step 6: Final answer
x = 46,652.55
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1.5x scale
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.