Finding the Fourth Proportional to 74,001.42, 110,992.91 and 43,623.99
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Solution
The fourth proportional to 74,001.42, 110,992.91 and 43,623.99 is: 65,430.55
Step by Step Solution
- Step 1: Write the proportion equation
74,001.42 : 110,992.91 = 43,623.99 : x - Step 2: Convert to fraction form
74,001.42/110,992.91 = 43,623.99/x - Step 3: Cross multiply
74,001.42x = 110,992.91 × 43,623.99 - Step 4: Simplify right side
74,001.42x = 4,841,953,812.65 - Step 5: Solve for x
x = 4,841,953,812.65/74,001.42 - Step 6: Final answer
x = 65,430.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.