Finding the Fourth Proportional to 98,313.19, 135,668.17 and 55,291.52
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Solution
The fourth proportional to 98,313.19, 135,668.17 and 55,291.52 is: 76,300.03
Step by Step Solution
- Step 1: Write the proportion equation
98,313.19 : 135,668.17 = 55,291.52 : x - Step 2: Convert to fraction form
98,313.19/135,668.17 = 55,291.52/x - Step 3: Cross multiply
98,313.19x = 135,668.17 × 55,291.52 - Step 4: Simplify right side
98,313.19x = 7,501,299,334.92 - Step 5: Solve for x
x = 7,501,299,334.92/98,313.19 - Step 6: Final answer
x = 76,300.03
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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.