Finding the Fourth Proportional to 98,267.80, 135,594.36 and 55,239.31
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Solution
The fourth proportional to 98,267.80, 135,594.36 and 55,239.31 is: 76,221.70
Step by Step Solution
- Step 1: Write the proportion equation
98,267.80 : 135,594.36 = 55,239.31 : x - Step 2: Convert to fraction form
98,267.80/135,594.36 = 55,239.31/x - Step 3: Cross multiply
98,267.80x = 135,594.36 × 55,239.31 - Step 4: Simplify right side
98,267.80x = 7,490,138,886.29 - Step 5: Solve for x
x = 7,490,138,886.29/98,267.80 - Step 6: Final answer
x = 76,221.70
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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.