Finding the Fourth Proportional to 77,120.99, 106,432.39 and 43,132.64
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Solution
The fourth proportional to 77,120.99, 106,432.39 and 43,132.64 is: 59,526.07
Step by Step Solution
- Step 1: Write the proportion equation
77,120.99 : 106,432.39 = 43,132.64 : x - Step 2: Convert to fraction form
77,120.99/106,432.39 = 43,132.64/x - Step 3: Cross multiply
77,120.99x = 106,432.39 × 43,132.64 - Step 4: Simplify right side
77,120.99x = 4,590,709,588.30 - Step 5: Solve for x
x = 4,590,709,588.30/77,120.99 - Step 6: Final answer
x = 59,526.07
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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.