Finding the Fourth Proportional to 81,840.48, 122,563.58 and 55,465.26
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Solution
The fourth proportional to 81,840.48, 122,563.58 and 55,465.26 is: 83,064.28
Step by Step Solution
- Step 1: Write the proportion equation
81,840.48 : 122,563.58 = 55,465.26 : x - Step 2: Convert to fraction form
81,840.48/122,563.58 = 55,465.26/x - Step 3: Cross multiply
81,840.48x = 122,563.58 × 55,465.26 - Step 4: Simplify right side
81,840.48x = 6,798,020,831.23 - Step 5: Solve for x
x = 6,798,020,831.23/81,840.48 - Step 6: Final answer
x = 83,064.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.