Finding the Fourth Proportional to 98,747.92, 136,268.75 and 56,320.12
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Solution
The fourth proportional to 98,747.92, 136,268.75 and 56,320.12 is: 77,719.84
Step by Step Solution
- Step 1: Write the proportion equation
98,747.92 : 136,268.75 = 56,320.12 : x - Step 2: Convert to fraction form
98,747.92/136,268.75 = 56,320.12/x - Step 3: Cross multiply
98,747.92x = 136,268.75 × 56,320.12 - Step 4: Simplify right side
98,747.92x = 7,674,672,352.25 - Step 5: Solve for x
x = 7,674,672,352.25/98,747.92 - Step 6: Final answer
x = 77,719.84
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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.