Finding the Fourth Proportional to 93,134.88, 128,519.28 and 55,402.08
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Solution
The fourth proportional to 93,134.88, 128,519.28 and 55,402.08 is: 76,450.79
Step by Step Solution
- Step 1: Write the proportion equation
93,134.88 : 128,519.28 = 55,402.08 : x - Step 2: Convert to fraction form
93,134.88/128,519.28 = 55,402.08/x - Step 3: Cross multiply
93,134.88x = 128,519.28 × 55,402.08 - Step 4: Simplify right side
93,134.88x = 7,120,235,432.10 - Step 5: Solve for x
x = 7,120,235,432.10/93,134.88 - Step 6: Final answer
x = 76,450.79
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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.