Finding the Fourth Proportional to 81,027.24, 121,332.96 and 56,032.80
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Solution
The fourth proportional to 81,027.24, 121,332.96 and 56,032.80 is: 83,905.43
Step by Step Solution
- Step 1: Write the proportion equation
81,027.24 : 121,332.96 = 56,032.80 : x - Step 2: Convert to fraction form
81,027.24/121,332.96 = 56,032.80/x - Step 3: Cross multiply
81,027.24x = 121,332.96 × 56,032.80 - Step 4: Simplify right side
81,027.24x = 6,798,625,481.09 - Step 5: Solve for x
x = 6,798,625,481.09/81,027.24 - Step 6: Final answer
x = 83,905.43
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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.