Finding the Fourth Proportional to 77,528.97, 106,961.99 and 43,975.53
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Solution
The fourth proportional to 77,528.97, 106,961.99 and 43,975.53 is: 60,670.35
Step by Step Solution
- Step 1: Write the proportion equation
77,528.97 : 106,961.99 = 43,975.53 : x - Step 2: Convert to fraction form
77,528.97/106,961.99 = 43,975.53/x - Step 3: Cross multiply
77,528.97x = 106,961.99 × 43,975.53 - Step 4: Simplify right side
77,528.97x = 4,703,709,980.23 - Step 5: Solve for x
x = 4,703,709,980.23/77,528.97 - Step 6: Final answer
x = 60,670.35
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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.