Finding the Fourth Proportional to 83,555.62, 115,332.57 and 53,747.62
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Solution
The fourth proportional to 83,555.62, 115,332.57 and 53,747.62 is: 74,188.32
Step by Step Solution
- Step 1: Write the proportion equation
83,555.62 : 115,332.57 = 53,747.62 : x - Step 2: Convert to fraction form
83,555.62/115,332.57 = 53,747.62/x - Step 3: Cross multiply
83,555.62x = 115,332.57 × 53,747.62 - Step 4: Simplify right side
83,555.62x = 6,198,851,145.98 - Step 5: Solve for x
x = 6,198,851,145.98/83,555.62 - Step 6: Final answer
x = 74,188.32
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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.