Finding the Fourth Proportional to 98,055.50, 135,271.62 and 57,749.99
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Solution
The fourth proportional to 98,055.50, 135,271.62 and 57,749.99 is: 79,668.50
Step by Step Solution
- Step 1: Write the proportion equation
98,055.50 : 135,271.62 = 57,749.99 : x - Step 2: Convert to fraction form
98,055.50/135,271.62 = 57,749.99/x - Step 3: Cross multiply
98,055.50x = 135,271.62 × 57,749.99 - Step 4: Simplify right side
98,055.50x = 7,811,934,025.93 - Step 5: Solve for x
x = 7,811,934,025.93/98,055.50 - Step 6: Final answer
x = 79,668.50
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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.