Finding the Fourth Proportional to 78,217.84, 107,939.98 and 44,233.00
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Solution
The fourth proportional to 78,217.84, 107,939.98 and 44,233.00 is: 61,041.18
Step by Step Solution
- Step 1: Write the proportion equation
78,217.84 : 107,939.98 = 44,233.00 : x - Step 2: Convert to fraction form
78,217.84/107,939.98 = 44,233.00/x - Step 3: Cross multiply
78,217.84x = 107,939.98 × 44,233.00 - Step 4: Simplify right side
78,217.84x = 4,774,509,279.13 - Step 5: Solve for x
x = 4,774,509,279.13/78,217.84 - Step 6: Final answer
x = 61,041.18
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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.