Finding the Fourth Proportional to 75,113.02, 112,662.21 and 19,709.02
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Solution
The fourth proportional to 75,113.02, 112,662.21 and 19,709.02 is: 29,561.61
Step by Step Solution
- Step 1: Write the proportion equation
75,113.02 : 112,662.21 = 19,709.02 : x - Step 2: Convert to fraction form
75,113.02/112,662.21 = 19,709.02/x - Step 3: Cross multiply
75,113.02x = 112,662.21 × 19,709.02 - Step 4: Simplify right side
75,113.02x = 2,220,461,750.13 - Step 5: Solve for x
x = 2,220,461,750.13/75,113.02 - Step 6: Final answer
x = 29,561.61
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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.