Finding the Fourth Proportional to 74,840.08, 103,278.36 and 41,303.92
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Solution
The fourth proportional to 74,840.08, 103,278.36 and 41,303.92 is: 56,998.89
Step by Step Solution
- Step 1: Write the proportion equation
74,840.08 : 103,278.36 = 41,303.92 : x - Step 2: Convert to fraction form
74,840.08/103,278.36 = 41,303.92/x - Step 3: Cross multiply
74,840.08x = 103,278.36 × 41,303.92 - Step 4: Simplify right side
74,840.08x = 4,265,801,119.17 - Step 5: Solve for x
x = 4,265,801,119.17/74,840.08 - Step 6: Final answer
x = 56,998.89
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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.