Finding the Fourth Proportional to 91,739.70, 137,476.74 and 63,247.41
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Solution
The fourth proportional to 91,739.70, 137,476.74 and 63,247.41 is: 94,779.55
Step by Step Solution
- Step 1: Write the proportion equation
91,739.70 : 137,476.74 = 63,247.41 : x - Step 2: Convert to fraction form
91,739.70/137,476.74 = 63,247.41/x - Step 3: Cross multiply
91,739.70x = 137,476.74 × 63,247.41 - Step 4: Simplify right side
91,739.70x = 8,695,047,740.24 - Step 5: Solve for x
x = 8,695,047,740.24/91,739.70 - Step 6: Final answer
x = 94,779.55
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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.