Finding the Fourth Proportional to 105,625.01, 145,762.03 and 57,878.09
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Solution
The fourth proportional to 105,625.01, 145,762.03 and 57,878.09 is: 79,871.50
Step by Step Solution
- Step 1: Write the proportion equation
105,625.01 : 145,762.03 = 57,878.09 : x - Step 2: Convert to fraction form
105,625.01/145,762.03 = 57,878.09/x - Step 3: Cross multiply
105,625.01x = 145,762.03 × 57,878.09 - Step 4: Simplify right side
105,625.01x = 8,436,428,600.98 - Step 5: Solve for x
x = 8,436,428,600.98/105,625.01 - Step 6: Final answer
x = 79,871.50
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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.