Finding the Fourth Proportional to 77,129.54, 115,682.63 and 26,536.26
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Solution
The fourth proportional to 77,129.54, 115,682.63 and 26,536.26 is: 39,800.37
Step by Step Solution
- Step 1: Write the proportion equation
77,129.54 : 115,682.63 = 26,536.26 : x - Step 2: Convert to fraction form
77,129.54/115,682.63 = 26,536.26/x - Step 3: Cross multiply
77,129.54x = 115,682.63 × 26,536.26 - Step 4: Simplify right side
77,129.54x = 3,069,784,347.16 - Step 5: Solve for x
x = 3,069,784,347.16/77,129.54 - Step 6: Final answer
x = 39,800.37
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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.