Finding the Fourth Proportional to 77,744.26, 107,347.35 and 60,718.78
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Solution
The fourth proportional to 77,744.26, 107,347.35 and 60,718.78 is: 83,838.99
Step by Step Solution
- Step 1: Write the proportion equation
77,744.26 : 107,347.35 = 60,718.78 : x - Step 2: Convert to fraction form
77,744.26/107,347.35 = 60,718.78/x - Step 3: Cross multiply
77,744.26x = 107,347.35 × 60,718.78 - Step 4: Simplify right side
77,744.26x = 6,518,000,128.23 - Step 5: Solve for x
x = 6,518,000,128.23/77,744.26 - Step 6: Final answer
x = 83,838.99
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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.