Finding the Fourth Proportional to 75,424.76, 113,184.80 and 42,166.68
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Solution
The fourth proportional to 75,424.76, 113,184.80 and 42,166.68 is: 63,276.66
Step by Step Solution
- Step 1: Write the proportion equation
75,424.76 : 113,184.80 = 42,166.68 : x - Step 2: Convert to fraction form
75,424.76/113,184.80 = 42,166.68/x - Step 3: Cross multiply
75,424.76x = 113,184.80 × 42,166.68 - Step 4: Simplify right side
75,424.76x = 4,772,627,242.46 - Step 5: Solve for x
x = 4,772,627,242.46/75,424.76 - Step 6: Final answer
x = 63,276.66
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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.