Finding the Fourth Proportional to 98,047.47, 135,302.89 and 55,605.09
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Solution
The fourth proportional to 98,047.47, 135,302.89 and 55,605.09 is: 76,733.54
Step by Step Solution
- Step 1: Write the proportion equation
98,047.47 : 135,302.89 = 55,605.09 : x - Step 2: Convert to fraction form
98,047.47/135,302.89 = 55,605.09/x - Step 3: Cross multiply
98,047.47x = 135,302.89 × 55,605.09 - Step 4: Simplify right side
98,047.47x = 7,523,529,744.08 - Step 5: Solve for x
x = 7,523,529,744.08/98,047.47 - Step 6: Final answer
x = 76,733.54
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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.