Finding the Fourth Proportional to 77,232.21, 106,555.68 and 43,235.70
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Solution
The fourth proportional to 77,232.21, 106,555.68 and 43,235.70 is: 59,651.40
Step by Step Solution
- Step 1: Write the proportion equation
77,232.21 : 106,555.68 = 43,235.70 : x - Step 2: Convert to fraction form
77,232.21/106,555.68 = 43,235.70/x - Step 3: Cross multiply
77,232.21x = 106,555.68 × 43,235.70 - Step 4: Simplify right side
77,232.21x = 4,607,009,413.78 - Step 5: Solve for x
x = 4,607,009,413.78/77,232.21 - Step 6: Final answer
x = 59,651.40
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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.