Finding the Fourth Proportional to 75,866.42, 113,811.95 and 28,485.24
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Solution
The fourth proportional to 75,866.42, 113,811.95 and 28,485.24 is: 42,732.48
Step by Step Solution
- Step 1: Write the proportion equation
75,866.42 : 113,811.95 = 28,485.24 : x - Step 2: Convert to fraction form
75,866.42/113,811.95 = 28,485.24/x - Step 3: Cross multiply
75,866.42x = 113,811.95 × 28,485.24 - Step 4: Simplify right side
75,866.42x = 3,241,960,355.04 - Step 5: Solve for x
x = 3,241,960,355.04/75,866.42 - Step 6: Final answer
x = 42,732.48
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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.