Finding the Fourth Proportional to 72,970.08, 100,697.36 and 41,139.02
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Solution
The fourth proportional to 72,970.08, 100,697.36 and 41,139.02 is: 56,771.09
Step by Step Solution
- Step 1: Write the proportion equation
72,970.08 : 100,697.36 = 41,139.02 : x - Step 2: Convert to fraction form
72,970.08/100,697.36 = 41,139.02/x - Step 3: Cross multiply
72,970.08x = 100,697.36 × 41,139.02 - Step 4: Simplify right side
72,970.08x = 4,142,590,706.99 - Step 5: Solve for x
x = 4,142,590,706.99/72,970.08 - Step 6: Final answer
x = 56,771.09
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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.