Finding the Fourth Proportional to 78,366.68, 117,393.14 and 44,993.08
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Solution
The fourth proportional to 78,366.68, 117,393.14 and 44,993.08 is: 67,399.55
Step by Step Solution
- Step 1: Write the proportion equation
78,366.68 : 117,393.14 = 44,993.08 : x - Step 2: Convert to fraction form
78,366.68/117,393.14 = 44,993.08/x - Step 3: Cross multiply
78,366.68x = 117,393.14 × 44,993.08 - Step 4: Simplify right side
78,366.68x = 5,281,878,939.47 - Step 5: Solve for x
x = 5,281,878,939.47/78,366.68 - Step 6: Final answer
x = 67,399.55
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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.