Finding the Fourth Proportional to 83,518.44, 115,407.99 and 60,817.74
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Solution
The fourth proportional to 83,518.44, 115,407.99 and 60,817.74 is: 84,039.56
Step by Step Solution
- Step 1: Write the proportion equation
83,518.44 : 115,407.99 = 60,817.74 : x - Step 2: Convert to fraction form
83,518.44/115,407.99 = 60,817.74/x - Step 3: Cross multiply
83,518.44x = 115,407.99 × 60,817.74 - Step 4: Simplify right side
83,518.44x = 7,018,853,129.74 - Step 5: Solve for x
x = 7,018,853,129.74/83,518.44 - Step 6: Final answer
x = 84,039.56
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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.