Finding the Fourth Proportional to 98,388.74, 135,776.01 and 53,676.74
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Solution
The fourth proportional to 98,388.74, 135,776.01 and 53,676.74 is: 74,073.66
Step by Step Solution
- Step 1: Write the proportion equation
98,388.74 : 135,776.01 = 53,676.74 : x - Step 2: Convert to fraction form
98,388.74/135,776.01 = 53,676.74/x - Step 3: Cross multiply
98,388.74x = 135,776.01 × 53,676.74 - Step 4: Simplify right side
98,388.74x = 7,288,013,587.01 - Step 5: Solve for x
x = 7,288,013,587.01/98,388.74 - Step 6: Final answer
x = 74,073.66
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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.