Finding the Fourth Proportional to 98,679.24, 136,177.05 and 53,356.92
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Solution
The fourth proportional to 98,679.24, 136,177.05 and 53,356.92 is: 73,632.39
Step by Step Solution
- Step 1: Write the proportion equation
98,679.24 : 136,177.05 = 53,356.92 : x - Step 2: Convert to fraction form
98,679.24/136,177.05 = 53,356.92/x - Step 3: Cross multiply
98,679.24x = 136,177.05 × 53,356.92 - Step 4: Simplify right side
98,679.24x = 7,265,987,962.69 - Step 5: Solve for x
x = 7,265,987,962.69/98,679.24 - Step 6: Final answer
x = 73,632.39
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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.