Finding the Fourth Proportional to 78,109.55, 107,785.95 and 44,119.49
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Solution
The fourth proportional to 78,109.55, 107,785.95 and 44,119.49 is: 60,881.94
Step by Step Solution
- Step 1: Write the proportion equation
78,109.55 : 107,785.95 = 44,119.49 : x - Step 2: Convert to fraction form
78,109.55/107,785.95 = 44,119.49/x - Step 3: Cross multiply
78,109.55x = 107,785.95 × 44,119.49 - Step 4: Simplify right side
78,109.55x = 4,755,461,143.17 - Step 5: Solve for x
x = 4,755,461,143.17/78,109.55 - Step 6: Final answer
x = 60,881.94
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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.