Finding the Fourth Proportional to 77,260.36, 106,611.62 and 45,437.08
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Solution
The fourth proportional to 77,260.36, 106,611.62 and 45,437.08 is: 62,698.66
Step by Step Solution
- Step 1: Write the proportion equation
77,260.36 : 106,611.62 = 45,437.08 : x - Step 2: Convert to fraction form
77,260.36/106,611.62 = 45,437.08/x - Step 3: Cross multiply
77,260.36x = 106,611.62 × 45,437.08 - Step 4: Simplify right side
77,260.36x = 4,844,120,706.87 - Step 5: Solve for x
x = 4,844,120,706.87/77,260.36 - Step 6: Final answer
x = 62,698.66
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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.