Finding the Fourth Proportional to 77,472.48, 106,922.74 and 43,482.99
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Solution
The fourth proportional to 77,472.48, 106,922.74 and 43,482.99 is: 60,012.54
Step by Step Solution
- Step 1: Write the proportion equation
77,472.48 : 106,922.74 = 43,482.99 : x - Step 2: Convert to fraction form
77,472.48/106,922.74 = 43,482.99/x - Step 3: Cross multiply
77,472.48x = 106,922.74 × 43,482.99 - Step 4: Simplify right side
77,472.48x = 4,649,320,434.19 - Step 5: Solve for x
x = 4,649,320,434.19/77,472.48 - Step 6: Final answer
x = 60,012.54
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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.