Finding the Fourth Proportional to 98,055.12, 135,221.96 and 65,862.48
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Solution
The fourth proportional to 98,055.12, 135,221.96 and 65,862.48 is: 90,827.01
Step by Step Solution
- Step 1: Write the proportion equation
98,055.12 : 135,221.96 = 65,862.48 : x - Step 2: Convert to fraction form
98,055.12/135,221.96 = 65,862.48/x - Step 3: Cross multiply
98,055.12x = 135,221.96 × 65,862.48 - Step 4: Simplify right side
98,055.12x = 8,906,053,636.06 - Step 5: Solve for x
x = 8,906,053,636.06/98,055.12 - Step 6: Final answer
x = 90,827.01
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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.