Finding the Fourth Proportional to 98,479.96, 135,898.50 and 55,458.52
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Solution
The fourth proportional to 98,479.96, 135,898.50 and 55,458.52 is: 76,530.59
Step by Step Solution
- Step 1: Write the proportion equation
98,479.96 : 135,898.50 = 55,458.52 : x - Step 2: Convert to fraction form
98,479.96/135,898.50 = 55,458.52/x - Step 3: Cross multiply
98,479.96x = 135,898.50 × 55,458.52 - Step 4: Simplify right side
98,479.96x = 7,536,729,680.22 - Step 5: Solve for x
x = 7,536,729,680.22/98,479.96 - Step 6: Final answer
x = 76,530.59
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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.