Finding the Fourth Proportional to 81,342.24, 112,237.44 and 45,532.80
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Solution
The fourth proportional to 81,342.24, 112,237.44 and 45,532.80 is: 62,826.95
Step by Step Solution
- Step 1: Write the proportion equation
81,342.24 : 112,237.44 = 45,532.80 : x - Step 2: Convert to fraction form
81,342.24/112,237.44 = 45,532.80/x - Step 3: Cross multiply
81,342.24x = 112,237.44 × 45,532.80 - Step 4: Simplify right side
81,342.24x = 5,110,484,908.03 - Step 5: Solve for x
x = 5,110,484,908.03/81,342.24 - Step 6: Final answer
x = 62,826.95
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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.