Finding the Fourth Proportional to 72,675.24, 100,287.99 and 40,842.06
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Solution
The fourth proportional to 72,675.24, 100,287.99 and 40,842.06 is: 56,359.88
Step by Step Solution
- Step 1: Write the proportion equation
72,675.24 : 100,287.99 = 40,842.06 : x - Step 2: Convert to fraction form
72,675.24/100,287.99 = 40,842.06/x - Step 3: Cross multiply
72,675.24x = 100,287.99 × 40,842.06 - Step 4: Simplify right side
72,675.24x = 4,095,968,104.86 - Step 5: Solve for x
x = 4,095,968,104.86/72,675.24 - Step 6: Final answer
x = 56,359.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.