Finding the Fourth Proportional to 79,378.98, 109,541.42 and 44,923.07
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Solution
The fourth proportional to 79,378.98, 109,541.42 and 44,923.07 is: 61,992.95
Step by Step Solution
- Step 1: Write the proportion equation
79,378.98 : 109,541.42 = 44,923.07 : x - Step 2: Convert to fraction form
79,378.98/109,541.42 = 44,923.07/x - Step 3: Cross multiply
79,378.98x = 109,541.42 × 44,923.07 - Step 4: Simplify right side
79,378.98x = 4,920,936,977.69 - Step 5: Solve for x
x = 4,920,936,977.69/79,378.98 - Step 6: Final answer
x = 61,992.95
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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.