Finding the Fourth Proportional to 105,250.77, 145,244.36 and 57,503.09
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Solution
The fourth proportional to 105,250.77, 145,244.36 and 57,503.09 is: 79,353.34
Step by Step Solution
- Step 1: Write the proportion equation
105,250.77 : 145,244.36 = 57,503.09 : x - Step 2: Convert to fraction form
105,250.77/145,244.36 = 57,503.09/x - Step 3: Cross multiply
105,250.77x = 145,244.36 × 57,503.09 - Step 4: Simplify right side
105,250.77x = 8,352,000,011.94 - Step 5: Solve for x
x = 8,352,000,011.94/105,250.77 - Step 6: Final answer
x = 79,353.34
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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.