Finding the Fourth Proportional to 70,097.68, 105,120.68 and 55,134.08
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Solution
The fourth proportional to 70,097.68, 105,120.68 and 55,134.08 is: 82,680.80
Step by Step Solution
- Step 1: Write the proportion equation
70,097.68 : 105,120.68 = 55,134.08 : x - Step 2: Convert to fraction form
70,097.68/105,120.68 = 55,134.08/x - Step 3: Cross multiply
70,097.68x = 105,120.68 × 55,134.08 - Step 4: Simplify right side
70,097.68x = 5,795,731,980.77 - Step 5: Solve for x
x = 5,795,731,980.77/70,097.68 - Step 6: Final answer
x = 82,680.80
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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.