Finding the Fourth Proportional to 76,899.24, 106,102.84 and 46,683.80
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Solution
The fourth proportional to 76,899.24, 106,102.84 and 46,683.80 is: 64,412.65
Step by Step Solution
- Step 1: Write the proportion equation
76,899.24 : 106,102.84 = 46,683.80 : x - Step 2: Convert to fraction form
76,899.24/106,102.84 = 46,683.80/x - Step 3: Cross multiply
76,899.24x = 106,102.84 × 46,683.80 - Step 4: Simplify right side
76,899.24x = 4,953,283,761.99 - Step 5: Solve for x
x = 4,953,283,761.99/76,899.24 - Step 6: Final answer
x = 64,412.65
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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.