Finding the Fourth Proportional to 74,281.74, 111,455.28 and 29,994.99
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Solution
The fourth proportional to 74,281.74, 111,455.28 and 29,994.99 is: 45,005.68
Step by Step Solution
- Step 1: Write the proportion equation
74,281.74 : 111,455.28 = 29,994.99 : x - Step 2: Convert to fraction form
74,281.74/111,455.28 = 29,994.99/x - Step 3: Cross multiply
74,281.74x = 111,455.28 × 29,994.99 - Step 4: Simplify right side
74,281.74x = 3,343,100,009.05 - Step 5: Solve for x
x = 3,343,100,009.05/74,281.74 - Step 6: Final answer
x = 45,005.68
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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.