Finding the Fourth Proportional to 74,749.23, 103,142.16 and 44,533.80
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Solution
The fourth proportional to 74,749.23, 103,142.16 and 44,533.80 is: 61,449.63
Step by Step Solution
- Step 1: Write the proportion equation
74,749.23 : 103,142.16 = 44,533.80 : x - Step 2: Convert to fraction form
74,749.23/103,142.16 = 44,533.80/x - Step 3: Cross multiply
74,749.23x = 103,142.16 × 44,533.80 - Step 4: Simplify right side
74,749.23x = 4,593,312,325.01 - Step 5: Solve for x
x = 4,593,312,325.01/74,749.23 - Step 6: Final answer
x = 61,449.63
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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.