Finding the Fourth Proportional to 84,249.95, 126,312.51 and 39,824.80
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Solution
The fourth proportional to 84,249.95, 126,312.51 and 39,824.80 is: 59,707.70
Step by Step Solution
- Step 1: Write the proportion equation
84,249.95 : 126,312.51 = 39,824.80 : x - Step 2: Convert to fraction form
84,249.95/126,312.51 = 39,824.80/x - Step 3: Cross multiply
84,249.95x = 126,312.51 × 39,824.80 - Step 4: Simplify right side
84,249.95x = 5,030,370,448.25 - Step 5: Solve for x
x = 5,030,370,448.25/84,249.95 - Step 6: Final answer
x = 59,707.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.