Finding the Fourth Proportional to 75,423.76, 113,135.54 and 19,263.91
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Solution
The fourth proportional to 75,423.76, 113,135.54 and 19,263.91 is: 28,895.84
Step by Step Solution
- Step 1: Write the proportion equation
75,423.76 : 113,135.54 = 19,263.91 : x - Step 2: Convert to fraction form
75,423.76/113,135.54 = 19,263.91/x - Step 3: Cross multiply
75,423.76x = 113,135.54 × 19,263.91 - Step 4: Simplify right side
75,423.76x = 2,179,432,860.36 - Step 5: Solve for x
x = 2,179,432,860.36/75,423.76 - Step 6: Final answer
x = 28,895.84
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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.