Finding the Fourth Proportional to 83,794.19, 115,657.76 and 55,489.55
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Solution
The fourth proportional to 83,794.19, 115,657.76 and 55,489.55 is: 76,590.00
Step by Step Solution
- Step 1: Write the proportion equation
83,794.19 : 115,657.76 = 55,489.55 : x - Step 2: Convert to fraction form
83,794.19/115,657.76 = 55,489.55/x - Step 3: Cross multiply
83,794.19x = 115,657.76 × 55,489.55 - Step 4: Simplify right side
83,794.19x = 6,417,796,778.96 - Step 5: Solve for x
x = 6,417,796,778.96/83,794.19 - Step 6: Final answer
x = 76,590.00
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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.