Finding the Fourth Proportional to 73,653.12, 101,641.68 and 40,119.12
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Solution
The fourth proportional to 73,653.12, 101,641.68 and 40,119.12 is: 55,364.59
Step by Step Solution
- Step 1: Write the proportion equation
73,653.12 : 101,641.68 = 40,119.12 : x - Step 2: Convert to fraction form
73,653.12/101,641.68 = 40,119.12/x - Step 3: Cross multiply
73,653.12x = 101,641.68 × 40,119.12 - Step 4: Simplify right side
73,653.12x = 4,077,774,756.92 - Step 5: Solve for x
x = 4,077,774,756.92/73,653.12 - Step 6: Final answer
x = 55,364.59
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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.