Finding the Fourth Proportional to 83,695.74, 115,658.46 and 63,517.02
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Solution
The fourth proportional to 83,695.74, 115,658.46 and 63,517.02 is: 87,773.65
Step by Step Solution
- Step 1: Write the proportion equation
83,695.74 : 115,658.46 = 63,517.02 : x - Step 2: Convert to fraction form
83,695.74/115,658.46 = 63,517.02/x - Step 3: Cross multiply
83,695.74x = 115,658.46 × 63,517.02 - Step 4: Simplify right side
83,695.74x = 7,346,280,716.99 - Step 5: Solve for x
x = 7,346,280,716.99/83,695.74 - Step 6: Final answer
x = 87,773.65
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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.