Finding the Fourth Proportional to 77,571.03, 107,036.34 and 43,572.99
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Solution
The fourth proportional to 77,571.03, 107,036.34 and 43,572.99 is: 60,124.16
Step by Step Solution
- Step 1: Write the proportion equation
77,571.03 : 107,036.34 = 43,572.99 : x - Step 2: Convert to fraction form
77,571.03/107,036.34 = 43,572.99/x - Step 3: Cross multiply
77,571.03x = 107,036.34 × 43,572.99 - Step 4: Simplify right side
77,571.03x = 4,663,893,372.46 - Step 5: Solve for x
x = 4,663,893,372.46/77,571.03 - Step 6: Final answer
x = 60,124.16
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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.