Finding the Fourth Proportional to 73,907.18, 101,989.77 and 40,373.18
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Solution
The fourth proportional to 73,907.18, 101,989.77 and 40,373.18 is: 55,713.82
Step by Step Solution
- Step 1: Write the proportion equation
73,907.18 : 101,989.77 = 40,373.18 : x - Step 2: Convert to fraction form
73,907.18/101,989.77 = 40,373.18/x - Step 3: Cross multiply
73,907.18x = 101,989.77 × 40,373.18 - Step 4: Simplify right side
73,907.18x = 4,117,651,342.37 - Step 5: Solve for x
x = 4,117,651,342.37/73,907.18 - Step 6: Final answer
x = 55,713.82
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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.