Finding the Fourth Proportional to 75,673.80, 113,510.70 and 67,363.20
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Solution
The fourth proportional to 75,673.80, 113,510.70 and 67,363.20 is: 101,044.80
Step by Step Solution
- Step 1: Write the proportion equation
75,673.80 : 113,510.70 = 67,363.20 : x - Step 2: Convert to fraction form
75,673.80/113,510.70 = 67,363.20/x - Step 3: Cross multiply
75,673.80x = 113,510.70 × 67,363.20 - Step 4: Simplify right side
75,673.80x = 7,646,443,986.24 - Step 5: Solve for x
x = 7,646,443,986.24/75,673.80 - Step 6: Final answer
x = 101,044.80
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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.