Finding the Fourth Proportional to 92,229.31, 138,359.73 and 42,313.68
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Solution
The fourth proportional to 92,229.31, 138,359.73 and 42,313.68 is: 63,477.75
Step by Step Solution
- Step 1: Write the proportion equation
92,229.31 : 138,359.73 = 42,313.68 : x - Step 2: Convert to fraction form
92,229.31/138,359.73 = 42,313.68/x - Step 3: Cross multiply
92,229.31x = 138,359.73 × 42,313.68 - Step 4: Simplify right side
92,229.31x = 5,854,509,340.11 - Step 5: Solve for x
x = 5,854,509,340.11/92,229.31 - Step 6: Final answer
x = 63,477.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.