Finding the Fourth Proportional to 75,284.93, 112,926.86 and 19,125.20
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Solution
The fourth proportional to 75,284.93, 112,926.86 and 19,125.20 is: 28,687.66
Step by Step Solution
- Step 1: Write the proportion equation
75,284.93 : 112,926.86 = 19,125.20 : x - Step 2: Convert to fraction form
75,284.93/112,926.86 = 19,125.20/x - Step 3: Cross multiply
75,284.93x = 112,926.86 × 19,125.20 - Step 4: Simplify right side
75,284.93x = 2,159,748,122.61 - Step 5: Solve for x
x = 2,159,748,122.61/75,284.93 - Step 6: Final answer
x = 28,687.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.