Finding the Fourth Proportional to 77,317.13, 106,704.19 and 43,325.23
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Solution
The fourth proportional to 77,317.13, 106,704.19 and 43,325.23 is: 59,792.48
Step by Step Solution
- Step 1: Write the proportion equation
77,317.13 : 106,704.19 = 43,325.23 : x - Step 2: Convert to fraction form
77,317.13/106,704.19 = 43,325.23/x - Step 3: Cross multiply
77,317.13x = 106,704.19 × 43,325.23 - Step 4: Simplify right side
77,317.13x = 4,622,983,317.48 - Step 5: Solve for x
x = 4,622,983,317.48/77,317.13 - Step 6: Final answer
x = 59,792.48
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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.