Finding the Fourth Proportional to 81,331.24, 122,004.78 and 25,169.08
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Solution
The fourth proportional to 81,331.24, 122,004.78 and 25,169.08 is: 37,756.07
Step by Step Solution
- Step 1: Write the proportion equation
81,331.24 : 122,004.78 = 25,169.08 : x - Step 2: Convert to fraction form
81,331.24/122,004.78 = 25,169.08/x - Step 3: Cross multiply
81,331.24x = 122,004.78 × 25,169.08 - Step 4: Simplify right side
81,331.24x = 3,070,748,068.20 - Step 5: Solve for x
x = 3,070,748,068.20/81,331.24 - Step 6: Final answer
x = 37,756.07
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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.