Finding the Fourth Proportional to 83,709.18, 115,475.76 and 53,462.70
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Solution
The fourth proportional to 83,709.18, 115,475.76 and 53,462.70 is: 73,751.12
Step by Step Solution
- Step 1: Write the proportion equation
83,709.18 : 115,475.76 = 53,462.70 : x - Step 2: Convert to fraction form
83,709.18/115,475.76 = 53,462.70/x - Step 3: Cross multiply
83,709.18x = 115,475.76 × 53,462.70 - Step 4: Simplify right side
83,709.18x = 6,173,645,914.15 - Step 5: Solve for x
x = 6,173,645,914.15/83,709.18 - Step 6: Final answer
x = 73,751.12
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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.