Finding the Fourth Proportional to 73,378.64, 101,261.64 and 39,844.88
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Solution
The fourth proportional to 73,378.64, 101,261.64 and 39,844.88 is: 54,985.45
Step by Step Solution
- Step 1: Write the proportion equation
73,378.64 : 101,261.64 = 39,844.88 : x - Step 2: Convert to fraction form
73,378.64/101,261.64 = 39,844.88/x - Step 3: Cross multiply
73,378.64x = 101,261.64 × 39,844.88 - Step 4: Simplify right side
73,378.64x = 4,034,757,894.40 - Step 5: Solve for x
x = 4,034,757,894.40/73,378.64 - Step 6: Final answer
x = 54,985.45
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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.