Finding the Fourth Proportional to 76,776.03, 115,197.51 and 26,891.91
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Solution
The fourth proportional to 76,776.03, 115,197.51 and 26,891.91 is: 40,349.59
Step by Step Solution
- Step 1: Write the proportion equation
76,776.03 : 115,197.51 = 26,891.91 : x - Step 2: Convert to fraction form
76,776.03/115,197.51 = 26,891.91/x - Step 3: Cross multiply
76,776.03x = 115,197.51 × 26,891.91 - Step 4: Simplify right side
76,776.03x = 3,097,881,071.14 - Step 5: Solve for x
x = 3,097,881,071.14/76,776.03 - Step 6: Final answer
x = 40,349.59
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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.