Finding the Fourth Proportional to 73,781.84, 110,783.48 and 42,227.53
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Solution
The fourth proportional to 73,781.84, 110,783.48 and 42,227.53 is: 63,404.65
Step by Step Solution
- Step 1: Write the proportion equation
73,781.84 : 110,783.48 = 42,227.53 : x - Step 2: Convert to fraction form
73,781.84/110,783.48 = 42,227.53/x - Step 3: Cross multiply
73,781.84x = 110,783.48 × 42,227.53 - Step 4: Simplify right side
73,781.84x = 4,678,112,237.11 - Step 5: Solve for x
x = 4,678,112,237.11/73,781.84 - Step 6: Final answer
x = 63,404.65
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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.