Finding the Fourth Proportional to 75,480.68, 113,220.95 and 19,320.70
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Solution
The fourth proportional to 75,480.68, 113,220.95 and 19,320.70 is: 28,981.03
Step by Step Solution
- Step 1: Write the proportion equation
75,480.68 : 113,220.95 = 19,320.70 : x - Step 2: Convert to fraction form
75,480.68/113,220.95 = 19,320.70/x - Step 3: Cross multiply
75,480.68x = 113,220.95 × 19,320.70 - Step 4: Simplify right side
75,480.68x = 2,187,508,315.87 - Step 5: Solve for x
x = 2,187,508,315.87/75,480.68 - Step 6: Final answer
x = 28,981.03
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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.