Finding the Fourth Proportional to 73,977.99, 102,093.74 and 42,140.81
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Solution
The fourth proportional to 73,977.99, 102,093.74 and 42,140.81 is: 58,156.65
Step by Step Solution
- Step 1: Write the proportion equation
73,977.99 : 102,093.74 = 42,140.81 : x - Step 2: Convert to fraction form
73,977.99/102,093.74 = 42,140.81/x - Step 3: Cross multiply
73,977.99x = 102,093.74 × 42,140.81 - Step 4: Simplify right side
73,977.99x = 4,302,312,178.36 - Step 5: Solve for x
x = 4,302,312,178.36/73,977.99 - Step 6: Final answer
x = 58,156.65
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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.