Finding the Fourth Proportional to 98,493.58, 135,920.28 and 56,054.44
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Solution
The fourth proportional to 98,493.58, 135,920.28 and 56,054.44 is: 77,354.64
Step by Step Solution
- Step 1: Write the proportion equation
98,493.58 : 135,920.28 = 56,054.44 : x - Step 2: Convert to fraction form
98,493.58/135,920.28 = 56,054.44/x - Step 3: Cross multiply
98,493.58x = 135,920.28 × 56,054.44 - Step 4: Simplify right side
98,493.58x = 7,618,935,180.04 - Step 5: Solve for x
x = 7,618,935,180.04/98,493.58 - Step 6: Final answer
x = 77,354.64
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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.