Finding the Fourth Proportional to 73,905.68, 101,987.70 and 40,371.68
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Solution
The fourth proportional to 73,905.68, 101,987.70 and 40,371.68 is: 55,711.75
Step by Step Solution
- Step 1: Write the proportion equation
73,905.68 : 101,987.70 = 40,371.68 : x - Step 2: Convert to fraction form
73,905.68/101,987.70 = 40,371.68/x - Step 3: Cross multiply
73,905.68x = 101,987.70 × 40,371.68 - Step 4: Simplify right side
73,905.68x = 4,117,414,788.34 - Step 5: Solve for x
x = 4,117,414,788.34/73,905.68 - Step 6: Final answer
x = 55,711.75
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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.