Finding the Fourth Proportional to 98,542.24, 135,988.08 and 53,830.24
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Solution
The fourth proportional to 98,542.24, 135,988.08 and 53,830.24 is: 74,285.62
Step by Step Solution
- Step 1: Write the proportion equation
98,542.24 : 135,988.08 = 53,830.24 : x - Step 2: Convert to fraction form
98,542.24/135,988.08 = 53,830.24/x - Step 3: Cross multiply
98,542.24x = 135,988.08 × 53,830.24 - Step 4: Simplify right side
98,542.24x = 7,320,270,983.54 - Step 5: Solve for x
x = 7,320,270,983.54/98,542.24 - Step 6: Final answer
x = 74,285.62
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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.