Finding the Fourth Proportional to 98,777.97, 136,312.56 and 53,454.96
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Solution
The fourth proportional to 98,777.97, 136,312.56 and 53,454.96 is: 73,767.28
Step by Step Solution
- Step 1: Write the proportion equation
98,777.97 : 136,312.56 = 53,454.96 : x - Step 2: Convert to fraction form
98,777.97/136,312.56 = 53,454.96/x - Step 3: Cross multiply
98,777.97x = 136,312.56 × 53,454.96 - Step 4: Simplify right side
98,777.97x = 7,286,582,442.30 - Step 5: Solve for x
x = 7,286,582,442.30/98,777.97 - Step 6: Final answer
x = 73,767.28
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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.