Finding the Fourth Proportional to 75,681.32, 104,450.24 and 48,901.70
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Solution
The fourth proportional to 75,681.32, 104,450.24 and 48,901.70 is: 67,490.82
Step by Step Solution
- Step 1: Write the proportion equation
75,681.32 : 104,450.24 = 48,901.70 : x - Step 2: Convert to fraction form
75,681.32/104,450.24 = 48,901.70/x - Step 3: Cross multiply
75,681.32x = 104,450.24 × 48,901.70 - Step 4: Simplify right side
75,681.32x = 5,107,794,301.41 - Step 5: Solve for x
x = 5,107,794,301.41/75,681.32 - Step 6: Final answer
x = 67,490.82
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1.5x scale
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.