Finding the Fourth Proportional to 98,266.80, 135,592.99 and 55,238.31
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Solution
The fourth proportional to 98,266.80, 135,592.99 and 55,238.31 is: 76,220.33
Step by Step Solution
- Step 1: Write the proportion equation
98,266.80 : 135,592.99 = 55,238.31 : x - Step 2: Convert to fraction form
98,266.80/135,592.99 = 55,238.31/x - Step 3: Cross multiply
98,266.80x = 135,592.99 × 55,238.31 - Step 4: Simplify right side
98,266.80x = 7,489,927,339.26 - Step 5: Solve for x
x = 7,489,927,339.26/98,266.80 - Step 6: Final answer
x = 76,220.33
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1.5x scale
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.