Finding the Fourth Proportional to 75,317.94, 103,947.98 and 43,486.79
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Solution
The fourth proportional to 75,317.94, 103,947.98 and 43,486.79 is: 60,017.09
Step by Step Solution
- Step 1: Write the proportion equation
75,317.94 : 103,947.98 = 43,486.79 : x - Step 2: Convert to fraction form
75,317.94/103,947.98 = 43,486.79/x - Step 3: Cross multiply
75,317.94x = 103,947.98 × 43,486.79 - Step 4: Simplify right side
75,317.94x = 4,520,363,240.01 - Step 5: Solve for x
x = 4,520,363,240.01/75,317.94 - Step 6: Final answer
x = 60,017.09
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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.