Finding the Fourth Proportional to 77,308.29, 106,685.84 and 43,316.84
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Solution
The fourth proportional to 77,308.29, 106,685.84 and 43,316.84 is: 59,777.47
Step by Step Solution
- Step 1: Write the proportion equation
77,308.29 : 106,685.84 = 43,316.84 : x - Step 2: Convert to fraction form
77,308.29/106,685.84 = 43,316.84/x - Step 3: Cross multiply
77,308.29x = 106,685.84 × 43,316.84 - Step 4: Simplify right side
77,308.29x = 4,621,293,836.55 - Step 5: Solve for x
x = 4,621,293,836.55/77,308.29 - Step 6: Final answer
x = 59,777.47
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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.