Finding the Fourth Proportional to 73,509.84, 101,443.08 and 39,975.84
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Solution
The fourth proportional to 73,509.84, 101,443.08 and 39,975.84 is: 55,166.39
Step by Step Solution
- Step 1: Write the proportion equation
73,509.84 : 101,443.08 = 39,975.84 : x - Step 2: Convert to fraction form
73,509.84/101,443.08 = 39,975.84/x - Step 3: Cross multiply
73,509.84x = 101,443.08 × 39,975.84 - Step 4: Simplify right side
73,509.84x = 4,055,272,335.19 - Step 5: Solve for x
x = 4,055,272,335.19/73,509.84 - Step 6: Final answer
x = 55,166.39
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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.