Finding the Fourth Proportional to 75,645.30, 113,467.95 and 42,467.70
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Solution
The fourth proportional to 75,645.30, 113,467.95 and 42,467.70 is: 63,701.55
Step by Step Solution
- Step 1: Write the proportion equation
75,645.30 : 113,467.95 = 42,467.70 : x - Step 2: Convert to fraction form
75,645.30/113,467.95 = 42,467.70/x - Step 3: Cross multiply
75,645.30x = 113,467.95 × 42,467.70 - Step 4: Simplify right side
75,645.30x = 4,818,722,860.22 - Step 5: Solve for x
x = 4,818,722,860.22/75,645.30 - Step 6: Final answer
x = 63,701.55
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1.5x scale
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.