Finding the Fourth Proportional to 83,685.08, 115,452.01 and 53,462.56
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Solution
The fourth proportional to 83,685.08, 115,452.01 and 53,462.56 is: 73,756.99
Step by Step Solution
- Step 1: Write the proportion equation
83,685.08 : 115,452.01 = 53,462.56 : x - Step 2: Convert to fraction form
83,685.08/115,452.01 = 53,462.56/x - Step 3: Cross multiply
83,685.08x = 115,452.01 × 53,462.56 - Step 4: Simplify right side
83,685.08x = 6,172,360,011.75 - Step 5: Solve for x
x = 6,172,360,011.75/83,685.08 - Step 6: Final answer
x = 73,756.99
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1.5x scale
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.