Finding the Fourth Proportional to 76,262.93, 105,246.36 and 42,272.14
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Solution
The fourth proportional to 76,262.93, 105,246.36 and 42,272.14 is: 58,337.50
Step by Step Solution
- Step 1: Write the proportion equation
76,262.93 : 105,246.36 = 42,272.14 : x - Step 2: Convert to fraction form
76,262.93/105,246.36 = 42,272.14/x - Step 3: Cross multiply
76,262.93x = 105,246.36 × 42,272.14 - Step 4: Simplify right side
76,262.93x = 4,448,988,653.05 - Step 5: Solve for x
x = 4,448,988,653.05/76,262.93 - Step 6: Final answer
x = 58,337.50
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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.