Finding the Fourth Proportional to 78,774.76, 108,729.84 and 44,803.09
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Solution
The fourth proportional to 78,774.76, 108,729.84 and 44,803.09 is: 61,840.02
Step by Step Solution
- Step 1: Write the proportion equation
78,774.76 : 108,729.84 = 44,803.09 : x - Step 2: Convert to fraction form
78,774.76/108,729.84 = 44,803.09/x - Step 3: Cross multiply
78,774.76x = 108,729.84 × 44,803.09 - Step 4: Simplify right side
78,774.76x = 4,871,432,807.21 - Step 5: Solve for x
x = 4,871,432,807.21/78,774.76 - Step 6: Final answer
x = 61,840.02
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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.