Finding the Fourth Proportional to 77,695.74, 116,526.26 and 30,312.09
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Solution
The fourth proportional to 77,695.74, 116,526.26 and 30,312.09 is: 45,461.37
Step by Step Solution
- Step 1: Write the proportion equation
77,695.74 : 116,526.26 = 30,312.09 : x - Step 2: Convert to fraction form
77,695.74/116,526.26 = 30,312.09/x - Step 3: Cross multiply
77,695.74x = 116,526.26 × 30,312.09 - Step 4: Simplify right side
77,695.74x = 3,532,154,556.26 - Step 5: Solve for x
x = 3,532,154,556.26/77,695.74 - Step 6: Final answer
x = 45,461.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.