Finding the Fourth Proportional to 76,756.28, 115,101.48 and 26,821.40
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Solution
The fourth proportional to 76,756.28, 115,101.48 and 26,821.40 is: 40,220.59
Step by Step Solution
- Step 1: Write the proportion equation
76,756.28 : 115,101.48 = 26,821.40 : x - Step 2: Convert to fraction form
76,756.28/115,101.48 = 26,821.40/x - Step 3: Cross multiply
76,756.28x = 115,101.48 × 26,821.40 - Step 4: Simplify right side
76,756.28x = 3,087,182,835.67 - Step 5: Solve for x
x = 3,087,182,835.67/76,756.28 - Step 6: Final answer
x = 40,220.59
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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.