Finding the Fourth Proportional to 80,797.14, 111,461.76 and 56,936.94
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Solution
The fourth proportional to 80,797.14, 111,461.76 and 56,936.94 is: 78,545.99
Step by Step Solution
- Step 1: Write the proportion equation
80,797.14 : 111,461.76 = 56,936.94 : x - Step 2: Convert to fraction form
80,797.14/111,461.76 = 56,936.94/x - Step 3: Cross multiply
80,797.14x = 111,461.76 × 56,936.94 - Step 4: Simplify right side
80,797.14x = 6,346,291,541.41 - Step 5: Solve for x
x = 6,346,291,541.41/80,797.14 - Step 6: Final answer
x = 78,545.99
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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.