Finding the Fourth Proportional to 77,730.06, 107,265.14 and 43,740.44
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Solution
The fourth proportional to 77,730.06, 107,265.14 and 43,740.44 is: 60,360.49
Step by Step Solution
- Step 1: Write the proportion equation
77,730.06 : 107,265.14 = 43,740.44 : x - Step 2: Convert to fraction form
77,730.06/107,265.14 = 43,740.44/x - Step 3: Cross multiply
77,730.06x = 107,265.14 × 43,740.44 - Step 4: Simplify right side
77,730.06x = 4,691,824,420.26 - Step 5: Solve for x
x = 4,691,824,420.26/77,730.06 - Step 6: Final answer
x = 60,360.49
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1.5x scale
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.