Finding the Fourth Proportional to 74,954.94, 103,445.19 and 43,125.18
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Solution
The fourth proportional to 74,954.94, 103,445.19 and 43,125.18 is: 59,516.99
Step by Step Solution
- Step 1: Write the proportion equation
74,954.94 : 103,445.19 = 43,125.18 : x - Step 2: Convert to fraction form
74,954.94/103,445.19 = 43,125.18/x - Step 3: Cross multiply
74,954.94x = 103,445.19 × 43,125.18 - Step 4: Simplify right side
74,954.94x = 4,461,092,438.88 - Step 5: Solve for x
x = 4,461,092,438.88/74,954.94 - Step 6: Final answer
x = 59,516.99
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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.