Finding the Fourth Proportional to 79,820.36, 110,152.11 and 45,831.07
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Solution
The fourth proportional to 79,820.36, 110,152.11 and 45,831.07 is: 63,246.88
Step by Step Solution
- Step 1: Write the proportion equation
79,820.36 : 110,152.11 = 45,831.07 : x - Step 2: Convert to fraction form
79,820.36/110,152.11 = 45,831.07/x - Step 3: Cross multiply
79,820.36x = 110,152.11 × 45,831.07 - Step 4: Simplify right side
79,820.36x = 5,048,389,064.06 - Step 5: Solve for x
x = 5,048,389,064.06/79,820.36 - Step 6: Final answer
x = 63,246.88
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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.