Finding the Fourth Proportional to 98,905.65, 136,489.64 and 53,584.79
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Solution
The fourth proportional to 98,905.65, 136,489.64 and 53,584.79 is: 73,946.92
Step by Step Solution
- Step 1: Write the proportion equation
98,905.65 : 136,489.64 = 53,584.79 : x - Step 2: Convert to fraction form
98,905.65/136,489.64 = 53,584.79/x - Step 3: Cross multiply
98,905.65x = 136,489.64 × 53,584.79 - Step 4: Simplify right side
98,905.65x = 7,313,767,746.20 - Step 5: Solve for x
x = 7,313,767,746.20/98,905.65 - Step 6: Final answer
x = 73,946.92
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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.