Finding the Fourth Proportional to 77,422.80, 106,840.44 and 43,888.08
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Solution
The fourth proportional to 77,422.80, 106,840.44 and 43,888.08 is: 60,563.84
Step by Step Solution
- Step 1: Write the proportion equation
77,422.80 : 106,840.44 = 43,888.08 : x - Step 2: Convert to fraction form
77,422.80/106,840.44 = 43,888.08/x - Step 3: Cross multiply
77,422.80x = 106,840.44 × 43,888.08 - Step 4: Simplify right side
77,422.80x = 4,689,021,777.96 - Step 5: Solve for x
x = 4,689,021,777.96/77,422.80 - Step 6: Final answer
x = 60,563.84
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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.