Finding the Fourth Proportional to 76,911.66, 106,186.14 and 58,972.19
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Solution
The fourth proportional to 76,911.66, 106,186.14 and 58,972.19 is: 81,418.46
Step by Step Solution
- Step 1: Write the proportion equation
76,911.66 : 106,186.14 = 58,972.19 : x - Step 2: Convert to fraction form
76,911.66/106,186.14 = 58,972.19/x - Step 3: Cross multiply
76,911.66x = 106,186.14 × 58,972.19 - Step 4: Simplify right side
76,911.66x = 6,262,028,692.52 - Step 5: Solve for x
x = 6,262,028,692.52/76,911.66 - Step 6: Final answer
x = 81,418.46
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1.5x scale
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.