Finding the Fourth Proportional to 67,113.36, 100,512.36 and 39,430.80
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Solution
The fourth proportional to 67,113.36, 100,512.36 and 39,430.80 is: 59,053.56
Step by Step Solution
- Step 1: Write the proportion equation
67,113.36 : 100,512.36 = 39,430.80 : x - Step 2: Convert to fraction form
67,113.36/100,512.36 = 39,430.80/x - Step 3: Cross multiply
67,113.36x = 100,512.36 × 39,430.80 - Step 4: Simplify right side
67,113.36x = 3,963,282,764.69 - Step 5: Solve for x
x = 3,963,282,764.69/67,113.36 - Step 6: Final answer
x = 59,053.56
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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.