Finding the Fourth Proportional to 77,395.86, 106,814.84 and 43,407.63
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Solution
The fourth proportional to 77,395.86, 106,814.84 and 43,407.63 is: 59,907.32
Step by Step Solution
- Step 1: Write the proportion equation
77,395.86 : 106,814.84 = 43,407.63 : x - Step 2: Convert to fraction form
77,395.86/106,814.84 = 43,407.63/x - Step 3: Cross multiply
77,395.86x = 106,814.84 × 43,407.63 - Step 4: Simplify right side
77,395.86x = 4,636,578,836.19 - Step 5: Solve for x
x = 4,636,578,836.19/77,395.86 - Step 6: Final answer
x = 59,907.32
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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.