Finding the Fourth Proportional to 74,316.60, 102,455.66 and 53,058.92
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Solution
The fourth proportional to 74,316.60, 102,455.66 and 53,058.92 is: 73,149.02
Step by Step Solution
- Step 1: Write the proportion equation
74,316.60 : 102,455.66 = 53,058.92 : x - Step 2: Convert to fraction form
74,316.60/102,455.66 = 53,058.92/x - Step 3: Cross multiply
74,316.60x = 102,455.66 × 53,058.92 - Step 4: Simplify right side
74,316.60x = 5,436,186,667.49 - Step 5: Solve for x
x = 5,436,186,667.49/74,316.60 - Step 6: Final answer
x = 73,149.02
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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.