Finding the Fourth Proportional to 77,922.48, 107,526.84 and 47,695.20
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Solution
The fourth proportional to 77,922.48, 107,526.84 and 47,695.20 is: 65,815.59
Step by Step Solution
- Step 1: Write the proportion equation
77,922.48 : 107,526.84 = 47,695.20 : x - Step 2: Convert to fraction form
77,922.48/107,526.84 = 47,695.20/x - Step 3: Cross multiply
77,922.48x = 107,526.84 × 47,695.20 - Step 4: Simplify right side
77,922.48x = 5,128,514,139.17 - Step 5: Solve for x
x = 5,128,514,139.17/77,922.48 - Step 6: Final answer
x = 65,815.59
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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.